<!DOCTYPE html>  <html> <head>   <title>backbone.js</title>   <meta http-equiv="content-type" content="text/html; charset=UTF-8">   <link rel="stylesheet" media="all" href="docco.css" /> </head> <body>   <div id="container">     <div id="background"></div>          <table cellpadding="0" cellspacing="0">       <thead>         <tr>           <th class="docs">             <h1>               backbone.js             </h1>           </th>           <th class="code">           </th>         </tr>       </thead>       <tbody>                               <tr id="section-1">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-1">&#182;</a>               </div>               <pre><code>Backbone.js 0.3.3
(c) 2010 Jeremy Ashkenas, DocumentCloud Inc.
Backbone may be freely distributed under the MIT license.
For all details and documentation:
http://documentcloud.github.com/backbone
</code></pre>             </td>             <td class="code">               <div class="highlight"><pre><span class="p">(</span><span class="kd">function</span><span class="p">(){</span></pre></div>             </td>           </tr>                               <tr id="section-2">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-2">&#182;</a>               </div>               <h2>Initial Setup</h2>             </td>             <td class="code">               <div class="highlight"><pre></pre></div>             </td>           </tr>                               <tr id="section-3">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-3">&#182;</a>               </div>               <p>The top-level namespace. All public Backbone classes and modules will
be attached to this. Exported for both CommonJS and the browser.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="kd">var</span> <span class="nx">Backbone</span><span class="p">;</span>
  <span class="k">if</span> <span class="p">(</span><span class="k">typeof</span> <span class="nx">exports</span> <span class="o">!==</span> <span class="s1">&#39;undefined&#39;</span><span class="p">)</span> <span class="p">{</span>
    <span class="nx">Backbone</span> <span class="o">=</span> <span class="nx">exports</span><span class="p">;</span>
  <span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
    <span class="nx">Backbone</span> <span class="o">=</span> <span class="k">this</span><span class="p">.</span><span class="nx">Backbone</span> <span class="o">=</span> <span class="p">{};</span>
  <span class="p">}</span></pre></div>             </td>           </tr>                               <tr id="section-4">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-4">&#182;</a>               </div>               <p>Current version of the library. Keep in sync with <code>package.json</code>.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nx">Backbone</span><span class="p">.</span><span class="nx">VERSION</span> <span class="o">=</span> <span class="s1">&#39;0.3.3&#39;</span><span class="p">;</span></pre></div>             </td>           </tr>                               <tr id="section-5">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-5">&#182;</a>               </div>               <p>Require Underscore, if we're on the server, and it's not already present.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="kd">var</span> <span class="nx">_</span> <span class="o">=</span> <span class="k">this</span><span class="p">.</span><span class="nx">_</span><span class="p">;</span>
  <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">_</span> <span class="o">&amp;&amp;</span> <span class="p">(</span><span class="k">typeof</span> <span class="nx">require</span> <span class="o">!==</span> <span class="s1">&#39;undefined&#39;</span><span class="p">))</span> <span class="nx">_</span> <span class="o">=</span> <span class="nx">require</span><span class="p">(</span><span class="s2">&quot;underscore&quot;</span><span class="p">).</span><span class="nx">_</span><span class="p">;</span></pre></div>             </td>           </tr>                               <tr id="section-6">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-6">&#182;</a>               </div>               <p>For Backbone's purposes, either jQuery or Zepto owns the <code>$</code> variable.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="kd">var</span> <span class="nx">$</span> <span class="o">=</span> <span class="k">this</span><span class="p">.</span><span class="nx">jQuery</span> <span class="o">||</span> <span class="k">this</span><span class="p">.</span><span class="nx">Zepto</span><span class="p">;</span></pre></div>             </td>           </tr>                               <tr id="section-7">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-7">&#182;</a>               </div>               <p>Turn on <code>emulateHTTP</code> to use support legacy HTTP servers. Setting this option will
fake <code>"PUT"</code> and <code>"DELETE"</code> requests via the <code>_method</code> parameter and set a
<code>X-Http-Method-Override</code> header.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nx">Backbone</span><span class="p">.</span><span class="nx">emulateHTTP</span> <span class="o">=</span> <span class="kc">false</span><span class="p">;</span></pre></div>             </td>           </tr>                               <tr id="section-8">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-8">&#182;</a>               </div>               <p>Turn on <code>emulateJSON</code> to support legacy servers that can't deal with direct
<code>application/json</code> requests ... will encode the body as
<code>application/x-www-form-urlencoded</code> instead and will send the model in a
form param named <code>model</code>.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nx">Backbone</span><span class="p">.</span><span class="nx">emulateJSON</span> <span class="o">=</span> <span class="kc">false</span><span class="p">;</span></pre></div>             </td>           </tr>                               <tr id="section-9">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-9">&#182;</a>               </div>               <h2>Backbone.Events</h2>             </td>             <td class="code">               <div class="highlight"><pre></pre></div>             </td>           </tr>                               <tr id="section-10">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-10">&#182;</a>               </div>               <p>A module that can be mixed in to <em>any object</em> in order to provide it with
custom events. You may <code>bind</code> or <code>unbind</code> a callback function to an event;
<code>trigger</code>-ing an event fires all callbacks in succession.</p>

<pre><code>var object = {};
_.extend(object, Backbone.Events);
object.bind('expand', function(){ alert('expanded'); });
object.trigger('expand');
</code></pre>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nx">Backbone</span><span class="p">.</span><span class="nx">Events</span> <span class="o">=</span> <span class="p">{</span></pre></div>             </td>           </tr>                               <tr id="section-11">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-11">&#182;</a>               </div>               <p>Bind an event, specified by a string name, <code>ev</code>, to a <code>callback</code> function.
Passing <code>"all"</code> will bind the callback to all events fired.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">bind</span> <span class="o">:</span> <span class="kd">function</span><span class="p">(</span><span class="nx">ev</span><span class="p">,</span> <span class="nx">callback</span><span class="p">)</span> <span class="p">{</span>
      <span class="kd">var</span> <span class="nx">calls</span> <span class="o">=</span> <span class="k">this</span><span class="p">.</span><span class="nx">_callbacks</span> <span class="o">||</span> <span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">_callbacks</span> <span class="o">=</span> <span class="p">{});</span>
      <span class="kd">var</span> <span class="nx">list</span>  <span class="o">=</span> <span class="k">this</span><span class="p">.</span><span class="nx">_callbacks</span><span class="p">[</span><span class="nx">ev</span><span class="p">]</span> <span class="o">||</span> <span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">_callbacks</span><span class="p">[</span><span class="nx">ev</span><span class="p">]</span> <span class="o">=</span> <span class="p">[]);</span>
      <span class="nx">list</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="nx">callback</span><span class="p">);</span>
      <span class="k">return</span> <span class="k">this</span><span class="p">;</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-12">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-12">&#182;</a>               </div>               <p>Remove one or many callbacks. If <code>callback</code> is null, removes all
callbacks for the event. If <code>ev</code> is null, removes all bound callbacks
for all events.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">unbind</span> <span class="o">:</span> <span class="kd">function</span><span class="p">(</span><span class="nx">ev</span><span class="p">,</span> <span class="nx">callback</span><span class="p">)</span> <span class="p">{</span>
      <span class="kd">var</span> <span class="nx">calls</span><span class="p">;</span>
      <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">ev</span><span class="p">)</span> <span class="p">{</span>
        <span class="k">this</span><span class="p">.</span><span class="nx">_callbacks</span> <span class="o">=</span> <span class="p">{};</span>
      <span class="p">}</span> <span class="k">else</span> <span class="k">if</span> <span class="p">(</span><span class="nx">calls</span> <span class="o">=</span> <span class="k">this</span><span class="p">.</span><span class="nx">_callbacks</span><span class="p">)</span> <span class="p">{</span>
        <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">callback</span><span class="p">)</span> <span class="p">{</span>
          <span class="nx">calls</span><span class="p">[</span><span class="nx">ev</span><span class="p">]</span> <span class="o">=</span> <span class="p">[];</span>
        <span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
          <span class="kd">var</span> <span class="nx">list</span> <span class="o">=</span> <span class="nx">calls</span><span class="p">[</span><span class="nx">ev</span><span class="p">];</span>
          <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">list</span><span class="p">)</span> <span class="k">return</span> <span class="k">this</span><span class="p">;</span>
          <span class="k">for</span> <span class="p">(</span><span class="kd">var</span> <span class="nx">i</span> <span class="o">=</span> <span class="mi">0</span><span class="p">,</span> <span class="nx">l</span> <span class="o">=</span> <span class="nx">list</span><span class="p">.</span><span class="nx">length</span><span class="p">;</span> <span class="nx">i</span> <span class="o">&lt;</span> <span class="nx">l</span><span class="p">;</span> <span class="nx">i</span><span class="o">++</span><span class="p">)</span> <span class="p">{</span>
            <span class="k">if</span> <span class="p">(</span><span class="nx">callback</span> <span class="o">===</span> <span class="nx">list</span><span class="p">[</span><span class="nx">i</span><span class="p">])</span> <span class="p">{</span>
              <span class="nx">list</span><span class="p">.</span><span class="nx">splice</span><span class="p">(</span><span class="nx">i</span><span class="p">,</span> <span class="mi">1</span><span class="p">);</span>
              <span class="k">break</span><span class="p">;</span>
            <span class="p">}</span>
          <span class="p">}</span>
        <span class="p">}</span>
      <span class="p">}</span>
      <span class="k">return</span> <span class="k">this</span><span class="p">;</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-13">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-13">&#182;</a>               </div>               <p>Trigger an event, firing all bound callbacks. Callbacks are passed the
same arguments as <code>trigger</code> is, apart from the event name.
Listening for <code>"all"</code> passes the true event name as the first argument.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">trigger</span> <span class="o">:</span> <span class="kd">function</span><span class="p">(</span><span class="nx">ev</span><span class="p">)</span> <span class="p">{</span>
      <span class="kd">var</span> <span class="nx">list</span><span class="p">,</span> <span class="nx">calls</span><span class="p">,</span> <span class="nx">i</span><span class="p">,</span> <span class="nx">l</span><span class="p">;</span>
      <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="p">(</span><span class="nx">calls</span> <span class="o">=</span> <span class="k">this</span><span class="p">.</span><span class="nx">_callbacks</span><span class="p">))</span> <span class="k">return</span> <span class="k">this</span><span class="p">;</span>
      <span class="k">if</span> <span class="p">(</span><span class="nx">list</span> <span class="o">=</span> <span class="nx">calls</span><span class="p">[</span><span class="nx">ev</span><span class="p">])</span> <span class="p">{</span>
        <span class="k">for</span> <span class="p">(</span><span class="nx">i</span> <span class="o">=</span> <span class="mi">0</span><span class="p">,</span> <span class="nx">l</span> <span class="o">=</span> <span class="nx">list</span><span class="p">.</span><span class="nx">length</span><span class="p">;</span> <span class="nx">i</span> <span class="o">&lt;</span> <span class="nx">l</span><span class="p">;</span> <span class="nx">i</span><span class="o">++</span><span class="p">)</span> <span class="p">{</span>
          <span class="nx">list</span><span class="p">[</span><span class="nx">i</span><span class="p">].</span><span class="nx">apply</span><span class="p">(</span><span class="k">this</span><span class="p">,</span> <span class="nb">Array</span><span class="p">.</span><span class="nx">prototype</span><span class="p">.</span><span class="nx">slice</span><span class="p">.</span><span class="nx">call</span><span class="p">(</span><span class="nx">arguments</span><span class="p">,</span> <span class="mi">1</span><span class="p">));</span>
        <span class="p">}</span>
      <span class="p">}</span>
      <span class="k">if</span> <span class="p">(</span><span class="nx">list</span> <span class="o">=</span> <span class="nx">calls</span><span class="p">[</span><span class="s1">&#39;all&#39;</span><span class="p">])</span> <span class="p">{</span>
        <span class="k">for</span> <span class="p">(</span><span class="nx">i</span> <span class="o">=</span> <span class="mi">0</span><span class="p">,</span> <span class="nx">l</span> <span class="o">=</span> <span class="nx">list</span><span class="p">.</span><span class="nx">length</span><span class="p">;</span> <span class="nx">i</span> <span class="o">&lt;</span> <span class="nx">l</span><span class="p">;</span> <span class="nx">i</span><span class="o">++</span><span class="p">)</span> <span class="p">{</span>
          <span class="nx">list</span><span class="p">[</span><span class="nx">i</span><span class="p">].</span><span class="nx">apply</span><span class="p">(</span><span class="k">this</span><span class="p">,</span> <span class="nx">arguments</span><span class="p">);</span>
        <span class="p">}</span>
      <span class="p">}</span>
      <span class="k">return</span> <span class="k">this</span><span class="p">;</span>
    <span class="p">}</span>

  <span class="p">};</span></pre></div>             </td>           </tr>                               <tr id="section-14">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-14">&#182;</a>               </div>               <h2>Backbone.Model</h2>             </td>             <td class="code">               <div class="highlight"><pre></pre></div>             </td>           </tr>                               <tr id="section-15">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-15">&#182;</a>               </div>               <p>Create a new model, with defined attributes. A client id (<code>cid</code>)
is automatically generated and assigned for you.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nx">Backbone</span><span class="p">.</span><span class="nx">Model</span> <span class="o">=</span> <span class="kd">function</span><span class="p">(</span><span class="nx">attributes</span><span class="p">,</span> <span class="nx">options</span><span class="p">)</span> <span class="p">{</span>
    <span class="nx">attributes</span> <span class="o">||</span> <span class="p">(</span><span class="nx">attributes</span> <span class="o">=</span> <span class="p">{});</span>
    <span class="k">if</span> <span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">defaults</span><span class="p">)</span> <span class="nx">attributes</span> <span class="o">=</span> <span class="nx">_</span><span class="p">.</span><span class="nx">extend</span><span class="p">({},</span> <span class="k">this</span><span class="p">.</span><span class="nx">defaults</span><span class="p">,</span> <span class="nx">attributes</span><span class="p">);</span>
    <span class="k">this</span><span class="p">.</span><span class="nx">attributes</span> <span class="o">=</span> <span class="p">{};</span>
    <span class="k">this</span><span class="p">.</span><span class="nx">_escapedAttributes</span> <span class="o">=</span> <span class="p">{};</span>
    <span class="k">this</span><span class="p">.</span><span class="nx">cid</span> <span class="o">=</span> <span class="nx">_</span><span class="p">.</span><span class="nx">uniqueId</span><span class="p">(</span><span class="s1">&#39;c&#39;</span><span class="p">);</span>
    <span class="k">this</span><span class="p">.</span><span class="nx">set</span><span class="p">(</span><span class="nx">attributes</span><span class="p">,</span> <span class="p">{</span><span class="nx">silent</span> <span class="o">:</span> <span class="kc">true</span><span class="p">});</span>
    <span class="k">this</span><span class="p">.</span><span class="nx">_previousAttributes</span> <span class="o">=</span> <span class="nx">_</span><span class="p">.</span><span class="nx">clone</span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">attributes</span><span class="p">);</span>
    <span class="k">if</span> <span class="p">(</span><span class="nx">options</span> <span class="o">&amp;&amp;</span> <span class="nx">options</span><span class="p">.</span><span class="nx">collection</span><span class="p">)</span> <span class="k">this</span><span class="p">.</span><span class="nx">collection</span> <span class="o">=</span> <span class="nx">options</span><span class="p">.</span><span class="nx">collection</span><span class="p">;</span>
    <span class="k">this</span><span class="p">.</span><span class="nx">initialize</span><span class="p">(</span><span class="nx">attributes</span><span class="p">,</span> <span class="nx">options</span><span class="p">);</span>
  <span class="p">};</span></pre></div>             </td>           </tr>                               <tr id="section-16">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-16">&#182;</a>               </div>               <p>Attach all inheritable methods to the Model prototype.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nx">_</span><span class="p">.</span><span class="nx">extend</span><span class="p">(</span><span class="nx">Backbone</span><span class="p">.</span><span class="nx">Model</span><span class="p">.</span><span class="nx">prototype</span><span class="p">,</span> <span class="nx">Backbone</span><span class="p">.</span><span class="nx">Events</span><span class="p">,</span> <span class="p">{</span></pre></div>             </td>           </tr>                               <tr id="section-17">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-17">&#182;</a>               </div>               <p>A snapshot of the model's previous attributes, taken immediately
after the last <code>"change"</code> event was fired.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">_previousAttributes</span> <span class="o">:</span> <span class="kc">null</span><span class="p">,</span></pre></div>             </td>           </tr>                               <tr id="section-18">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-18">&#182;</a>               </div>               <p>Has the item been changed since the last <code>"change"</code> event?</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">_changed</span> <span class="o">:</span> <span class="kc">false</span><span class="p">,</span></pre></div>             </td>           </tr>                               <tr id="section-19">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-19">&#182;</a>               </div>               <p>Initialize is an empty function by default. Override it with your own
initialization logic.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">initialize</span> <span class="o">:</span> <span class="kd">function</span><span class="p">(){},</span></pre></div>             </td>           </tr>                               <tr id="section-20">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-20">&#182;</a>               </div>               <p>Return a copy of the model's <code>attributes</code> object.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">toJSON</span> <span class="o">:</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
      <span class="k">return</span> <span class="nx">_</span><span class="p">.</span><span class="nx">clone</span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">attributes</span><span class="p">);</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-21">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-21">&#182;</a>               </div>               <p>Get the value of an attribute.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">get</span> <span class="o">:</span> <span class="kd">function</span><span class="p">(</span><span class="nx">attr</span><span class="p">)</span> <span class="p">{</span>
      <span class="k">return</span> <span class="k">this</span><span class="p">.</span><span class="nx">attributes</span><span class="p">[</span><span class="nx">attr</span><span class="p">];</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-22">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-22">&#182;</a>               </div>               <p>Get the HTML-escaped value of an attribute.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">escape</span> <span class="o">:</span> <span class="kd">function</span><span class="p">(</span><span class="nx">attr</span><span class="p">)</span> <span class="p">{</span>
      <span class="kd">var</span> <span class="nx">html</span><span class="p">;</span>
      <span class="k">if</span> <span class="p">(</span><span class="nx">html</span> <span class="o">=</span> <span class="k">this</span><span class="p">.</span><span class="nx">_escapedAttributes</span><span class="p">[</span><span class="nx">attr</span><span class="p">])</span> <span class="k">return</span> <span class="nx">html</span><span class="p">;</span>
      <span class="kd">var</span> <span class="nx">val</span> <span class="o">=</span> <span class="k">this</span><span class="p">.</span><span class="nx">attributes</span><span class="p">[</span><span class="nx">attr</span><span class="p">];</span>
      <span class="k">return</span> <span class="k">this</span><span class="p">.</span><span class="nx">_escapedAttributes</span><span class="p">[</span><span class="nx">attr</span><span class="p">]</span> <span class="o">=</span> <span class="nx">escapeHTML</span><span class="p">(</span><span class="nx">val</span> <span class="o">==</span> <span class="kc">null</span> <span class="o">?</span> <span class="s1">&#39;&#39;</span> <span class="o">:</span> <span class="nx">val</span><span class="p">);</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-23">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-23">&#182;</a>               </div>               <p>Set a hash of model attributes on the object, firing <code>"change"</code> unless you
choose to silence it.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">set</span> <span class="o">:</span> <span class="kd">function</span><span class="p">(</span><span class="nx">attrs</span><span class="p">,</span> <span class="nx">options</span><span class="p">)</span> <span class="p">{</span></pre></div>             </td>           </tr>                               <tr id="section-24">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-24">&#182;</a>               </div>               <p>Extract attributes and options.</p>             </td>             <td class="code">               <div class="highlight"><pre>      <span class="nx">options</span> <span class="o">||</span> <span class="p">(</span><span class="nx">options</span> <span class="o">=</span> <span class="p">{});</span>
      <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">attrs</span><span class="p">)</span> <span class="k">return</span> <span class="k">this</span><span class="p">;</span>
      <span class="k">if</span> <span class="p">(</span><span class="nx">attrs</span><span class="p">.</span><span class="nx">attributes</span><span class="p">)</span> <span class="nx">attrs</span> <span class="o">=</span> <span class="nx">attrs</span><span class="p">.</span><span class="nx">attributes</span><span class="p">;</span>
      <span class="kd">var</span> <span class="nx">now</span> <span class="o">=</span> <span class="k">this</span><span class="p">.</span><span class="nx">attributes</span><span class="p">,</span> <span class="nx">escaped</span> <span class="o">=</span> <span class="k">this</span><span class="p">.</span><span class="nx">_escapedAttributes</span><span class="p">;</span></pre></div>             </td>           </tr>                               <tr id="section-25">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-25">&#182;</a>               </div>               <p>Run validation.</p>             </td>             <td class="code">               <div class="highlight"><pre>      <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">options</span><span class="p">.</span><span class="nx">silent</span> <span class="o">&amp;&amp;</span> <span class="k">this</span><span class="p">.</span><span class="nx">validate</span> <span class="o">&amp;&amp;</span> <span class="o">!</span><span class="k">this</span><span class="p">.</span><span class="nx">_performValidation</span><span class="p">(</span><span class="nx">attrs</span><span class="p">,</span> <span class="nx">options</span><span class="p">))</span> <span class="k">return</span> <span class="kc">false</span><span class="p">;</span></pre></div>             </td>           </tr>                               <tr id="section-26">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-26">&#182;</a>               </div>               <p>Check for changes of <code>id</code>.</p>             </td>             <td class="code">               <div class="highlight"><pre>      <span class="k">if</span> <span class="p">(</span><span class="s1">&#39;id&#39;</span> <span class="k">in</span> <span class="nx">attrs</span><span class="p">)</span> <span class="k">this</span><span class="p">.</span><span class="nx">id</span> <span class="o">=</span> <span class="nx">attrs</span><span class="p">.</span><span class="nx">id</span><span class="p">;</span></pre></div>             </td>           </tr>                               <tr id="section-27">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-27">&#182;</a>               </div>               <p>Update attributes.</p>             </td>             <td class="code">               <div class="highlight"><pre>      <span class="k">for</span> <span class="p">(</span><span class="kd">var</span> <span class="nx">attr</span> <span class="k">in</span> <span class="nx">attrs</span><span class="p">)</span> <span class="p">{</span>
        <span class="kd">var</span> <span class="nx">val</span> <span class="o">=</span> <span class="nx">attrs</span><span class="p">[</span><span class="nx">attr</span><span class="p">];</span>
        <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">_</span><span class="p">.</span><span class="nx">isEqual</span><span class="p">(</span><span class="nx">now</span><span class="p">[</span><span class="nx">attr</span><span class="p">],</span> <span class="nx">val</span><span class="p">))</span> <span class="p">{</span>
          <span class="nx">now</span><span class="p">[</span><span class="nx">attr</span><span class="p">]</span> <span class="o">=</span> <span class="nx">val</span><span class="p">;</span>
          <span class="k">delete</span> <span class="nx">escaped</span><span class="p">[</span><span class="nx">attr</span><span class="p">];</span>
          <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">options</span><span class="p">.</span><span class="nx">silent</span><span class="p">)</span> <span class="p">{</span>
            <span class="k">this</span><span class="p">.</span><span class="nx">_changed</span> <span class="o">=</span> <span class="kc">true</span><span class="p">;</span>
            <span class="k">this</span><span class="p">.</span><span class="nx">trigger</span><span class="p">(</span><span class="s1">&#39;change:&#39;</span> <span class="o">+</span> <span class="nx">attr</span><span class="p">,</span> <span class="k">this</span><span class="p">,</span> <span class="nx">val</span><span class="p">,</span> <span class="nx">options</span><span class="p">);</span>
          <span class="p">}</span>
        <span class="p">}</span>
      <span class="p">}</span></pre></div>             </td>           </tr>                               <tr id="section-28">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-28">&#182;</a>               </div>               <p>Fire the <code>"change"</code> event, if the model has been changed.</p>             </td>             <td class="code">               <div class="highlight"><pre>      <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">options</span><span class="p">.</span><span class="nx">silent</span> <span class="o">&amp;&amp;</span> <span class="k">this</span><span class="p">.</span><span class="nx">_changed</span><span class="p">)</span> <span class="k">this</span><span class="p">.</span><span class="nx">change</span><span class="p">(</span><span class="nx">options</span><span class="p">);</span>
      <span class="k">return</span> <span class="k">this</span><span class="p">;</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-29">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-29">&#182;</a>               </div>               <p>Remove an attribute from the model, firing <code>"change"</code> unless you choose
to silence it.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">unset</span> <span class="o">:</span> <span class="kd">function</span><span class="p">(</span><span class="nx">attr</span><span class="p">,</span> <span class="nx">options</span><span class="p">)</span> <span class="p">{</span>
      <span class="nx">options</span> <span class="o">||</span> <span class="p">(</span><span class="nx">options</span> <span class="o">=</span> <span class="p">{});</span>
      <span class="kd">var</span> <span class="nx">value</span> <span class="o">=</span> <span class="k">this</span><span class="p">.</span><span class="nx">attributes</span><span class="p">[</span><span class="nx">attr</span><span class="p">];</span></pre></div>             </td>           </tr>                               <tr id="section-30">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-30">&#182;</a>               </div>               <p>Run validation.</p>             </td>             <td class="code">               <div class="highlight"><pre>      <span class="kd">var</span> <span class="nx">validObj</span> <span class="o">=</span> <span class="p">{};</span>
      <span class="nx">validObj</span><span class="p">[</span><span class="nx">attr</span><span class="p">]</span> <span class="o">=</span> <span class="k">void</span> <span class="mi">0</span><span class="p">;</span>
      <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">options</span><span class="p">.</span><span class="nx">silent</span> <span class="o">&amp;&amp;</span> <span class="k">this</span><span class="p">.</span><span class="nx">validate</span> <span class="o">&amp;&amp;</span> <span class="o">!</span><span class="k">this</span><span class="p">.</span><span class="nx">_performValidation</span><span class="p">(</span><span class="nx">validObj</span><span class="p">,</span> <span class="nx">options</span><span class="p">))</span> <span class="k">return</span> <span class="kc">false</span><span class="p">;</span></pre></div>             </td>           </tr>                               <tr id="section-31">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-31">&#182;</a>               </div>               <p>Remove the attribute.</p>             </td>             <td class="code">               <div class="highlight"><pre>      <span class="k">delete</span> <span class="k">this</span><span class="p">.</span><span class="nx">attributes</span><span class="p">[</span><span class="nx">attr</span><span class="p">];</span>
      <span class="k">delete</span> <span class="k">this</span><span class="p">.</span><span class="nx">_escapedAttributes</span><span class="p">[</span><span class="nx">attr</span><span class="p">];</span>
      <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">options</span><span class="p">.</span><span class="nx">silent</span><span class="p">)</span> <span class="p">{</span>
        <span class="k">this</span><span class="p">.</span><span class="nx">_changed</span> <span class="o">=</span> <span class="kc">true</span><span class="p">;</span>
        <span class="k">this</span><span class="p">.</span><span class="nx">trigger</span><span class="p">(</span><span class="s1">&#39;change:&#39;</span> <span class="o">+</span> <span class="nx">attr</span><span class="p">,</span> <span class="k">this</span><span class="p">,</span> <span class="k">void</span> <span class="mi">0</span><span class="p">,</span> <span class="nx">options</span><span class="p">);</span>
        <span class="k">this</span><span class="p">.</span><span class="nx">change</span><span class="p">(</span><span class="nx">options</span><span class="p">);</span>
      <span class="p">}</span>
      <span class="k">return</span> <span class="k">this</span><span class="p">;</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-32">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-32">&#182;</a>               </div>               <p>Clear all attributes on the model, firing <code>"change"</code> unless you choose
to silence it.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">clear</span> <span class="o">:</span> <span class="kd">function</span><span class="p">(</span><span class="nx">options</span><span class="p">)</span> <span class="p">{</span>
      <span class="nx">options</span> <span class="o">||</span> <span class="p">(</span><span class="nx">options</span> <span class="o">=</span> <span class="p">{});</span>
      <span class="kd">var</span> <span class="nx">old</span> <span class="o">=</span> <span class="k">this</span><span class="p">.</span><span class="nx">attributes</span><span class="p">;</span></pre></div>             </td>           </tr>                               <tr id="section-33">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-33">&#182;</a>               </div>               <p>Run validation.</p>             </td>             <td class="code">               <div class="highlight"><pre>      <span class="kd">var</span> <span class="nx">validObj</span> <span class="o">=</span> <span class="p">{};</span>
      <span class="k">for</span> <span class="p">(</span><span class="nx">attr</span> <span class="k">in</span> <span class="nx">old</span><span class="p">)</span> <span class="nx">validObj</span><span class="p">[</span><span class="nx">attr</span><span class="p">]</span> <span class="o">=</span> <span class="k">void</span> <span class="mi">0</span><span class="p">;</span>
      <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">options</span><span class="p">.</span><span class="nx">silent</span> <span class="o">&amp;&amp;</span> <span class="k">this</span><span class="p">.</span><span class="nx">validate</span> <span class="o">&amp;&amp;</span> <span class="o">!</span><span class="k">this</span><span class="p">.</span><span class="nx">_performValidation</span><span class="p">(</span><span class="nx">validObj</span><span class="p">,</span> <span class="nx">options</span><span class="p">))</span> <span class="k">return</span> <span class="kc">false</span><span class="p">;</span>

      <span class="k">this</span><span class="p">.</span><span class="nx">attributes</span> <span class="o">=</span> <span class="p">{};</span>
      <span class="k">this</span><span class="p">.</span><span class="nx">_escapedAttributes</span> <span class="o">=</span> <span class="p">{};</span>
      <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">options</span><span class="p">.</span><span class="nx">silent</span><span class="p">)</span> <span class="p">{</span>
        <span class="k">this</span><span class="p">.</span><span class="nx">_changed</span> <span class="o">=</span> <span class="kc">true</span><span class="p">;</span>
        <span class="k">for</span> <span class="p">(</span><span class="nx">attr</span> <span class="k">in</span> <span class="nx">old</span><span class="p">)</span> <span class="p">{</span>
          <span class="k">this</span><span class="p">.</span><span class="nx">trigger</span><span class="p">(</span><span class="s1">&#39;change:&#39;</span> <span class="o">+</span> <span class="nx">attr</span><span class="p">,</span> <span class="k">this</span><span class="p">,</span> <span class="k">void</span> <span class="mi">0</span><span class="p">,</span> <span class="nx">options</span><span class="p">);</span>
        <span class="p">}</span>
        <span class="k">this</span><span class="p">.</span><span class="nx">change</span><span class="p">(</span><span class="nx">options</span><span class="p">);</span>
      <span class="p">}</span>
      <span class="k">return</span> <span class="k">this</span><span class="p">;</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-34">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-34">&#182;</a>               </div>               <p>Fetch the model from the server. If the server's representation of the
model differs from its current attributes, they will be overriden,
triggering a <code>"change"</code> event.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">fetch</span> <span class="o">:</span> <span class="kd">function</span><span class="p">(</span><span class="nx">options</span><span class="p">)</span> <span class="p">{</span>
      <span class="nx">options</span> <span class="o">||</span> <span class="p">(</span><span class="nx">options</span> <span class="o">=</span> <span class="p">{});</span>
      <span class="kd">var</span> <span class="nx">model</span> <span class="o">=</span> <span class="k">this</span><span class="p">;</span>
      <span class="kd">var</span> <span class="nx">success</span> <span class="o">=</span> <span class="kd">function</span><span class="p">(</span><span class="nx">resp</span><span class="p">)</span> <span class="p">{</span>
        <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">model</span><span class="p">.</span><span class="nx">set</span><span class="p">(</span><span class="nx">model</span><span class="p">.</span><span class="nx">parse</span><span class="p">(</span><span class="nx">resp</span><span class="p">),</span> <span class="nx">options</span><span class="p">))</span> <span class="k">return</span> <span class="kc">false</span><span class="p">;</span>
        <span class="k">if</span> <span class="p">(</span><span class="nx">options</span><span class="p">.</span><span class="nx">success</span><span class="p">)</span> <span class="nx">options</span><span class="p">.</span><span class="nx">success</span><span class="p">(</span><span class="nx">model</span><span class="p">,</span> <span class="nx">resp</span><span class="p">);</span>
      <span class="p">};</span>
      <span class="kd">var</span> <span class="nx">error</span> <span class="o">=</span> <span class="nx">wrapError</span><span class="p">(</span><span class="nx">options</span><span class="p">.</span><span class="nx">error</span><span class="p">,</span> <span class="nx">model</span><span class="p">,</span> <span class="nx">options</span><span class="p">);</span>
      <span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">sync</span> <span class="o">||</span> <span class="nx">Backbone</span><span class="p">.</span><span class="nx">sync</span><span class="p">)(</span><span class="s1">&#39;read&#39;</span><span class="p">,</span> <span class="k">this</span><span class="p">,</span> <span class="nx">success</span><span class="p">,</span> <span class="nx">error</span><span class="p">);</span>
      <span class="k">return</span> <span class="k">this</span><span class="p">;</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-35">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-35">&#182;</a>               </div>               <p>Set a hash of model attributes, and sync the model to the server.
If the server returns an attributes hash that differs, the model's
state will be <code>set</code> again.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">save</span> <span class="o">:</span> <span class="kd">function</span><span class="p">(</span><span class="nx">attrs</span><span class="p">,</span> <span class="nx">options</span><span class="p">)</span> <span class="p">{</span>
      <span class="nx">options</span> <span class="o">||</span> <span class="p">(</span><span class="nx">options</span> <span class="o">=</span> <span class="p">{});</span>
      <span class="k">if</span> <span class="p">(</span><span class="nx">attrs</span> <span class="o">&amp;&amp;</span> <span class="o">!</span><span class="k">this</span><span class="p">.</span><span class="nx">set</span><span class="p">(</span><span class="nx">attrs</span><span class="p">,</span> <span class="nx">options</span><span class="p">))</span> <span class="k">return</span> <span class="kc">false</span><span class="p">;</span>
      <span class="kd">var</span> <span class="nx">model</span> <span class="o">=</span> <span class="k">this</span><span class="p">;</span>
      <span class="kd">var</span> <span class="nx">success</span> <span class="o">=</span> <span class="kd">function</span><span class="p">(</span><span class="nx">resp</span><span class="p">)</span> <span class="p">{</span>
        <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">model</span><span class="p">.</span><span class="nx">set</span><span class="p">(</span><span class="nx">model</span><span class="p">.</span><span class="nx">parse</span><span class="p">(</span><span class="nx">resp</span><span class="p">),</span> <span class="nx">options</span><span class="p">))</span> <span class="k">return</span> <span class="kc">false</span><span class="p">;</span>
        <span class="k">if</span> <span class="p">(</span><span class="nx">options</span><span class="p">.</span><span class="nx">success</span><span class="p">)</span> <span class="nx">options</span><span class="p">.</span><span class="nx">success</span><span class="p">(</span><span class="nx">model</span><span class="p">,</span> <span class="nx">resp</span><span class="p">);</span>
      <span class="p">};</span>
      <span class="kd">var</span> <span class="nx">error</span> <span class="o">=</span> <span class="nx">wrapError</span><span class="p">(</span><span class="nx">options</span><span class="p">.</span><span class="nx">error</span><span class="p">,</span> <span class="nx">model</span><span class="p">,</span> <span class="nx">options</span><span class="p">);</span>
      <span class="kd">var</span> <span class="nx">method</span> <span class="o">=</span> <span class="k">this</span><span class="p">.</span><span class="nx">isNew</span><span class="p">()</span> <span class="o">?</span> <span class="s1">&#39;create&#39;</span> <span class="o">:</span> <span class="s1">&#39;update&#39;</span><span class="p">;</span>
      <span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">sync</span> <span class="o">||</span> <span class="nx">Backbone</span><span class="p">.</span><span class="nx">sync</span><span class="p">)(</span><span class="nx">method</span><span class="p">,</span> <span class="k">this</span><span class="p">,</span> <span class="nx">success</span><span class="p">,</span> <span class="nx">error</span><span class="p">);</span>
      <span class="k">return</span> <span class="k">this</span><span class="p">;</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-36">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-36">&#182;</a>               </div>               <p>Destroy this model on the server. Upon success, the model is removed
from its collection, if it has one.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">destroy</span> <span class="o">:</span> <span class="kd">function</span><span class="p">(</span><span class="nx">options</span><span class="p">)</span> <span class="p">{</span>
      <span class="nx">options</span> <span class="o">||</span> <span class="p">(</span><span class="nx">options</span> <span class="o">=</span> <span class="p">{});</span>
      <span class="kd">var</span> <span class="nx">model</span> <span class="o">=</span> <span class="k">this</span><span class="p">;</span>
      <span class="kd">var</span> <span class="nx">success</span> <span class="o">=</span> <span class="kd">function</span><span class="p">(</span><span class="nx">resp</span><span class="p">)</span> <span class="p">{</span>
        <span class="k">if</span> <span class="p">(</span><span class="nx">model</span><span class="p">.</span><span class="nx">collection</span><span class="p">)</span> <span class="nx">model</span><span class="p">.</span><span class="nx">collection</span><span class="p">.</span><span class="nx">remove</span><span class="p">(</span><span class="nx">model</span><span class="p">);</span>
        <span class="k">if</span> <span class="p">(</span><span class="nx">options</span><span class="p">.</span><span class="nx">success</span><span class="p">)</span> <span class="nx">options</span><span class="p">.</span><span class="nx">success</span><span class="p">(</span><span class="nx">model</span><span class="p">,</span> <span class="nx">resp</span><span class="p">);</span>
      <span class="p">};</span>
      <span class="kd">var</span> <span class="nx">error</span> <span class="o">=</span> <span class="nx">wrapError</span><span class="p">(</span><span class="nx">options</span><span class="p">.</span><span class="nx">error</span><span class="p">,</span> <span class="nx">model</span><span class="p">,</span> <span class="nx">options</span><span class="p">);</span>
      <span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">sync</span> <span class="o">||</span> <span class="nx">Backbone</span><span class="p">.</span><span class="nx">sync</span><span class="p">)(</span><span class="s1">&#39;delete&#39;</span><span class="p">,</span> <span class="k">this</span><span class="p">,</span> <span class="nx">success</span><span class="p">,</span> <span class="nx">error</span><span class="p">);</span>
      <span class="k">return</span> <span class="k">this</span><span class="p">;</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-37">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-37">&#182;</a>               </div>               <p>Default URL for the model's representation on the server -- if you're
using Backbone's restful methods, override this to change the endpoint
that will be called.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">url</span> <span class="o">:</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
      <span class="kd">var</span> <span class="nx">base</span> <span class="o">=</span> <span class="nx">getUrl</span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">collection</span><span class="p">);</span>
      <span class="k">if</span> <span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">isNew</span><span class="p">())</span> <span class="k">return</span> <span class="nx">base</span><span class="p">;</span>
      <span class="k">return</span> <span class="nx">base</span> <span class="o">+</span> <span class="p">(</span><span class="nx">base</span><span class="p">.</span><span class="nx">charAt</span><span class="p">(</span><span class="nx">base</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">1</span><span class="p">)</span> <span class="o">==</span> <span class="s1">&#39;/&#39;</span> <span class="o">?</span> <span class="s1">&#39;&#39;</span> <span class="o">:</span> <span class="s1">&#39;/&#39;</span><span class="p">)</span> <span class="o">+</span> <span class="k">this</span><span class="p">.</span><span class="nx">id</span><span class="p">;</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-38">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-38">&#182;</a>               </div>               <p><strong>parse</strong> converts a response into the hash of attributes to be <code>set</code> on
the model. The default implementation is just to pass the response along.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">parse</span> <span class="o">:</span> <span class="kd">function</span><span class="p">(</span><span class="nx">resp</span><span class="p">)</span> <span class="p">{</span>
      <span class="k">return</span> <span class="nx">resp</span><span class="p">;</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-39">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-39">&#182;</a>               </div>               <p>Create a new model with identical attributes to this one.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">clone</span> <span class="o">:</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
      <span class="k">return</span> <span class="k">new</span> <span class="k">this</span><span class="p">.</span><span class="nx">constructor</span><span class="p">(</span><span class="k">this</span><span class="p">);</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-40">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-40">&#182;</a>               </div>               <p>A model is new if it has never been saved to the server, and has a negative
ID.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">isNew</span> <span class="o">:</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
      <span class="k">return</span> <span class="o">!</span><span class="k">this</span><span class="p">.</span><span class="nx">id</span><span class="p">;</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-41">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-41">&#182;</a>               </div>               <p>Call this method to manually fire a <code>change</code> event for this model.
Calling this will cause all objects observing the model to update.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">change</span> <span class="o">:</span> <span class="kd">function</span><span class="p">(</span><span class="nx">options</span><span class="p">)</span> <span class="p">{</span>
      <span class="k">this</span><span class="p">.</span><span class="nx">trigger</span><span class="p">(</span><span class="s1">&#39;change&#39;</span><span class="p">,</span> <span class="k">this</span><span class="p">,</span> <span class="nx">options</span><span class="p">);</span>
      <span class="k">this</span><span class="p">.</span><span class="nx">_previousAttributes</span> <span class="o">=</span> <span class="nx">_</span><span class="p">.</span><span class="nx">clone</span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">attributes</span><span class="p">);</span>
      <span class="k">this</span><span class="p">.</span><span class="nx">_changed</span> <span class="o">=</span> <span class="kc">false</span><span class="p">;</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-42">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-42">&#182;</a>               </div>               <p>Determine if the model has changed since the last <code>"change"</code> event.
If you specify an attribute name, determine if that attribute has changed.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">hasChanged</span> <span class="o">:</span> <span class="kd">function</span><span class="p">(</span><span class="nx">attr</span><span class="p">)</span> <span class="p">{</span>
      <span class="k">if</span> <span class="p">(</span><span class="nx">attr</span><span class="p">)</span> <span class="k">return</span> <span class="k">this</span><span class="p">.</span><span class="nx">_previousAttributes</span><span class="p">[</span><span class="nx">attr</span><span class="p">]</span> <span class="o">!=</span> <span class="k">this</span><span class="p">.</span><span class="nx">attributes</span><span class="p">[</span><span class="nx">attr</span><span class="p">];</span>
      <span class="k">return</span> <span class="k">this</span><span class="p">.</span><span class="nx">_changed</span><span class="p">;</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-43">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-43">&#182;</a>               </div>               <p>Return an object containing all the attributes that have changed, or false
if there are no changed attributes. Useful for determining what parts of a
view need to be updated and/or what attributes need to be persisted to
the server.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">changedAttributes</span> <span class="o">:</span> <span class="kd">function</span><span class="p">(</span><span class="nx">now</span><span class="p">)</span> <span class="p">{</span>
      <span class="nx">now</span> <span class="o">||</span> <span class="p">(</span><span class="nx">now</span> <span class="o">=</span> <span class="k">this</span><span class="p">.</span><span class="nx">attributes</span><span class="p">);</span>
      <span class="kd">var</span> <span class="nx">old</span> <span class="o">=</span> <span class="k">this</span><span class="p">.</span><span class="nx">_previousAttributes</span><span class="p">;</span>
      <span class="kd">var</span> <span class="nx">changed</span> <span class="o">=</span> <span class="kc">false</span><span class="p">;</span>
      <span class="k">for</span> <span class="p">(</span><span class="kd">var</span> <span class="nx">attr</span> <span class="k">in</span> <span class="nx">now</span><span class="p">)</span> <span class="p">{</span>
        <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">_</span><span class="p">.</span><span class="nx">isEqual</span><span class="p">(</span><span class="nx">old</span><span class="p">[</span><span class="nx">attr</span><span class="p">],</span> <span class="nx">now</span><span class="p">[</span><span class="nx">attr</span><span class="p">]))</span> <span class="p">{</span>
          <span class="nx">changed</span> <span class="o">=</span> <span class="nx">changed</span> <span class="o">||</span> <span class="p">{};</span>
          <span class="nx">changed</span><span class="p">[</span><span class="nx">attr</span><span class="p">]</span> <span class="o">=</span> <span class="nx">now</span><span class="p">[</span><span class="nx">attr</span><span class="p">];</span>
        <span class="p">}</span>
      <span class="p">}</span>
      <span class="k">return</span> <span class="nx">changed</span><span class="p">;</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-44">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-44">&#182;</a>               </div>               <p>Get the previous value of an attribute, recorded at the time the last
<code>"change"</code> event was fired.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">previous</span> <span class="o">:</span> <span class="kd">function</span><span class="p">(</span><span class="nx">attr</span><span class="p">)</span> <span class="p">{</span>
      <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">attr</span> <span class="o">||</span> <span class="o">!</span><span class="k">this</span><span class="p">.</span><span class="nx">_previousAttributes</span><span class="p">)</span> <span class="k">return</span> <span class="kc">null</span><span class="p">;</span>
      <span class="k">return</span> <span class="k">this</span><span class="p">.</span><span class="nx">_previousAttributes</span><span class="p">[</span><span class="nx">attr</span><span class="p">];</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-45">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-45">&#182;</a>               </div>               <p>Get all of the attributes of the model at the time of the previous
<code>"change"</code> event.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">previousAttributes</span> <span class="o">:</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
      <span class="k">return</span> <span class="nx">_</span><span class="p">.</span><span class="nx">clone</span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">_previousAttributes</span><span class="p">);</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-46">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-46">&#182;</a>               </div>               <p>Run validation against a set of incoming attributes, returning <code>true</code>
if all is well. If a specific <code>error</code> callback has been passed,
call that instead of firing the general <code>"error"</code> event.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">_performValidation</span> <span class="o">:</span> <span class="kd">function</span><span class="p">(</span><span class="nx">attrs</span><span class="p">,</span> <span class="nx">options</span><span class="p">)</span> <span class="p">{</span>
      <span class="kd">var</span> <span class="nx">error</span> <span class="o">=</span> <span class="k">this</span><span class="p">.</span><span class="nx">validate</span><span class="p">(</span><span class="nx">attrs</span><span class="p">);</span>
      <span class="k">if</span> <span class="p">(</span><span class="nx">error</span><span class="p">)</span> <span class="p">{</span>
        <span class="k">if</span> <span class="p">(</span><span class="nx">options</span><span class="p">.</span><span class="nx">error</span><span class="p">)</span> <span class="p">{</span>
          <span class="nx">options</span><span class="p">.</span><span class="nx">error</span><span class="p">(</span><span class="k">this</span><span class="p">,</span> <span class="nx">error</span><span class="p">);</span>
        <span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
          <span class="k">this</span><span class="p">.</span><span class="nx">trigger</span><span class="p">(</span><span class="s1">&#39;error&#39;</span><span class="p">,</span> <span class="k">this</span><span class="p">,</span> <span class="nx">error</span><span class="p">,</span> <span class="nx">options</span><span class="p">);</span>
        <span class="p">}</span>
        <span class="k">return</span> <span class="kc">false</span><span class="p">;</span>
      <span class="p">}</span>
      <span class="k">return</span> <span class="kc">true</span><span class="p">;</span>
    <span class="p">}</span>

  <span class="p">});</span></pre></div>             </td>           </tr>                               <tr id="section-47">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-47">&#182;</a>               </div>               <h2>Backbone.Collection</h2>             </td>             <td class="code">               <div class="highlight"><pre></pre></div>             </td>           </tr>                               <tr id="section-48">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-48">&#182;</a>               </div>               <p>Provides a standard collection class for our sets of models, ordered
or unordered. If a <code>comparator</code> is specified, the Collection will maintain
its models in sort order, as they're added and removed.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nx">Backbone</span><span class="p">.</span><span class="nx">Collection</span> <span class="o">=</span> <span class="kd">function</span><span class="p">(</span><span class="nx">models</span><span class="p">,</span> <span class="nx">options</span><span class="p">)</span> <span class="p">{</span>
    <span class="nx">options</span> <span class="o">||</span> <span class="p">(</span><span class="nx">options</span> <span class="o">=</span> <span class="p">{});</span>
    <span class="k">if</span> <span class="p">(</span><span class="nx">options</span><span class="p">.</span><span class="nx">comparator</span><span class="p">)</span> <span class="p">{</span>
      <span class="k">this</span><span class="p">.</span><span class="nx">comparator</span> <span class="o">=</span> <span class="nx">options</span><span class="p">.</span><span class="nx">comparator</span><span class="p">;</span>
      <span class="k">delete</span> <span class="nx">options</span><span class="p">.</span><span class="nx">comparator</span><span class="p">;</span>
    <span class="p">}</span>
    <span class="k">this</span><span class="p">.</span><span class="nx">_boundOnModelEvent</span> <span class="o">=</span> <span class="nx">_</span><span class="p">.</span><span class="nx">bind</span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">_onModelEvent</span><span class="p">,</span> <span class="k">this</span><span class="p">);</span>
    <span class="k">this</span><span class="p">.</span><span class="nx">_reset</span><span class="p">();</span>
    <span class="k">if</span> <span class="p">(</span><span class="nx">models</span><span class="p">)</span> <span class="k">this</span><span class="p">.</span><span class="nx">refresh</span><span class="p">(</span><span class="nx">models</span><span class="p">,</span> <span class="p">{</span><span class="nx">silent</span><span class="o">:</span> <span class="kc">true</span><span class="p">});</span>
    <span class="k">this</span><span class="p">.</span><span class="nx">initialize</span><span class="p">(</span><span class="nx">models</span><span class="p">,</span> <span class="nx">options</span><span class="p">);</span>
  <span class="p">};</span></pre></div>             </td>           </tr>                               <tr id="section-49">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-49">&#182;</a>               </div>               <p>Define the Collection's inheritable methods.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nx">_</span><span class="p">.</span><span class="nx">extend</span><span class="p">(</span><span class="nx">Backbone</span><span class="p">.</span><span class="nx">Collection</span><span class="p">.</span><span class="nx">prototype</span><span class="p">,</span> <span class="nx">Backbone</span><span class="p">.</span><span class="nx">Events</span><span class="p">,</span> <span class="p">{</span></pre></div>             </td>           </tr>                               <tr id="section-50">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-50">&#182;</a>               </div>               <p>The default model for a collection is just a <strong>Backbone.Model</strong>.
This should be overridden in most cases.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">model</span> <span class="o">:</span> <span class="nx">Backbone</span><span class="p">.</span><span class="nx">Model</span><span class="p">,</span></pre></div>             </td>           </tr>                               <tr id="section-51">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-51">&#182;</a>               </div>               <p>Initialize is an empty function by default. Override it with your own
initialization logic.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">initialize</span> <span class="o">:</span> <span class="kd">function</span><span class="p">(){},</span></pre></div>             </td>           </tr>                               <tr id="section-52">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-52">&#182;</a>               </div>               <p>The JSON representation of a Collection is an array of the
models' attributes.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">toJSON</span> <span class="o">:</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
      <span class="k">return</span> <span class="k">this</span><span class="p">.</span><span class="nx">map</span><span class="p">(</span><span class="kd">function</span><span class="p">(</span><span class="nx">model</span><span class="p">){</span> <span class="k">return</span> <span class="nx">model</span><span class="p">.</span><span class="nx">toJSON</span><span class="p">();</span> <span class="p">});</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-53">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-53">&#182;</a>               </div>               <p>Add a model, or list of models to the set. Pass <strong>silent</strong> to avoid
firing the <code>added</code> event for every new model.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">add</span> <span class="o">:</span> <span class="kd">function</span><span class="p">(</span><span class="nx">models</span><span class="p">,</span> <span class="nx">options</span><span class="p">)</span> <span class="p">{</span>
      <span class="k">if</span> <span class="p">(</span><span class="nx">_</span><span class="p">.</span><span class="nx">isArray</span><span class="p">(</span><span class="nx">models</span><span class="p">))</span> <span class="p">{</span>
        <span class="k">for</span> <span class="p">(</span><span class="kd">var</span> <span class="nx">i</span> <span class="o">=</span> <span class="mi">0</span><span class="p">,</span> <span class="nx">l</span> <span class="o">=</span> <span class="nx">models</span><span class="p">.</span><span class="nx">length</span><span class="p">;</span> <span class="nx">i</span> <span class="o">&lt;</span> <span class="nx">l</span><span class="p">;</span> <span class="nx">i</span><span class="o">++</span><span class="p">)</span> <span class="p">{</span>
          <span class="k">this</span><span class="p">.</span><span class="nx">_add</span><span class="p">(</span><span class="nx">models</span><span class="p">[</span><span class="nx">i</span><span class="p">],</span> <span class="nx">options</span><span class="p">);</span>
        <span class="p">}</span>
      <span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
        <span class="k">this</span><span class="p">.</span><span class="nx">_add</span><span class="p">(</span><span class="nx">models</span><span class="p">,</span> <span class="nx">options</span><span class="p">);</span>
      <span class="p">}</span>
      <span class="k">return</span> <span class="k">this</span><span class="p">;</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-54">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-54">&#182;</a>               </div>               <p>Remove a model, or a list of models from the set. Pass silent to avoid
firing the <code>removed</code> event for every model removed.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">remove</span> <span class="o">:</span> <span class="kd">function</span><span class="p">(</span><span class="nx">models</span><span class="p">,</span> <span class="nx">options</span><span class="p">)</span> <span class="p">{</span>
      <span class="k">if</span> <span class="p">(</span><span class="nx">_</span><span class="p">.</span><span class="nx">isArray</span><span class="p">(</span><span class="nx">models</span><span class="p">))</span> <span class="p">{</span>
        <span class="k">for</span> <span class="p">(</span><span class="kd">var</span> <span class="nx">i</span> <span class="o">=</span> <span class="mi">0</span><span class="p">,</span> <span class="nx">l</span> <span class="o">=</span> <span class="nx">models</span><span class="p">.</span><span class="nx">length</span><span class="p">;</span> <span class="nx">i</span> <span class="o">&lt;</span> <span class="nx">l</span><span class="p">;</span> <span class="nx">i</span><span class="o">++</span><span class="p">)</span> <span class="p">{</span>
          <span class="k">this</span><span class="p">.</span><span class="nx">_remove</span><span class="p">(</span><span class="nx">models</span><span class="p">[</span><span class="nx">i</span><span class="p">],</span> <span class="nx">options</span><span class="p">);</span>
        <span class="p">}</span>
      <span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
        <span class="k">this</span><span class="p">.</span><span class="nx">_remove</span><span class="p">(</span><span class="nx">models</span><span class="p">,</span> <span class="nx">options</span><span class="p">);</span>
      <span class="p">}</span>
      <span class="k">return</span> <span class="k">this</span><span class="p">;</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-55">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-55">&#182;</a>               </div>               <p>Get a model from the set by id.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">get</span> <span class="o">:</span> <span class="kd">function</span><span class="p">(</span><span class="nx">id</span><span class="p">)</span> <span class="p">{</span>
      <span class="k">if</span> <span class="p">(</span><span class="nx">id</span> <span class="o">==</span> <span class="kc">null</span><span class="p">)</span> <span class="k">return</span> <span class="kc">null</span><span class="p">;</span>
      <span class="k">return</span> <span class="k">this</span><span class="p">.</span><span class="nx">_byId</span><span class="p">[</span><span class="nx">id</span><span class="p">.</span><span class="nx">id</span> <span class="o">!=</span> <span class="kc">null</span> <span class="o">?</span> <span class="nx">id</span><span class="p">.</span><span class="nx">id</span> <span class="o">:</span> <span class="nx">id</span><span class="p">];</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-56">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-56">&#182;</a>               </div>               <p>Get a model from the set by client id.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">getByCid</span> <span class="o">:</span> <span class="kd">function</span><span class="p">(</span><span class="nx">cid</span><span class="p">)</span> <span class="p">{</span>
      <span class="k">return</span> <span class="nx">cid</span> <span class="o">&amp;&amp;</span> <span class="k">this</span><span class="p">.</span><span class="nx">_byCid</span><span class="p">[</span><span class="nx">cid</span><span class="p">.</span><span class="nx">cid</span> <span class="o">||</span> <span class="nx">cid</span><span class="p">];</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-57">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-57">&#182;</a>               </div>               <p>Get the model at the given index.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">at</span><span class="o">:</span> <span class="kd">function</span><span class="p">(</span><span class="nx">index</span><span class="p">)</span> <span class="p">{</span>
      <span class="k">return</span> <span class="k">this</span><span class="p">.</span><span class="nx">models</span><span class="p">[</span><span class="nx">index</span><span class="p">];</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-58">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-58">&#182;</a>               </div>               <p>Force the collection to re-sort itself. You don't need to call this under normal
circumstances, as the set will maintain sort order as each item is added.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">sort</span> <span class="o">:</span> <span class="kd">function</span><span class="p">(</span><span class="nx">options</span><span class="p">)</span> <span class="p">{</span>
      <span class="nx">options</span> <span class="o">||</span> <span class="p">(</span><span class="nx">options</span> <span class="o">=</span> <span class="p">{});</span>
      <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="k">this</span><span class="p">.</span><span class="nx">comparator</span><span class="p">)</span> <span class="k">throw</span> <span class="k">new</span> <span class="nb">Error</span><span class="p">(</span><span class="s1">&#39;Cannot sort a set without a comparator&#39;</span><span class="p">);</span>
      <span class="k">this</span><span class="p">.</span><span class="nx">models</span> <span class="o">=</span> <span class="k">this</span><span class="p">.</span><span class="nx">sortBy</span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">comparator</span><span class="p">);</span>
      <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">options</span><span class="p">.</span><span class="nx">silent</span><span class="p">)</span> <span class="k">this</span><span class="p">.</span><span class="nx">trigger</span><span class="p">(</span><span class="s1">&#39;refresh&#39;</span><span class="p">,</span> <span class="k">this</span><span class="p">,</span> <span class="nx">options</span><span class="p">);</span>
      <span class="k">return</span> <span class="k">this</span><span class="p">;</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-59">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-59">&#182;</a>               </div>               <p>Pluck an attribute from each model in the collection.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">pluck</span> <span class="o">:</span> <span class="kd">function</span><span class="p">(</span><span class="nx">attr</span><span class="p">)</span> <span class="p">{</span>
      <span class="k">return</span> <span class="nx">_</span><span class="p">.</span><span class="nx">map</span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">models</span><span class="p">,</span> <span class="kd">function</span><span class="p">(</span><span class="nx">model</span><span class="p">){</span> <span class="k">return</span> <span class="nx">model</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="nx">attr</span><span class="p">);</span> <span class="p">});</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-60">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-60">&#182;</a>               </div>               <p>When you have more items than you want to add or remove individually,
you can refresh the entire set with a new list of models, without firing
any <code>added</code> or <code>removed</code> events. Fires <code>refresh</code> when finished.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">refresh</span> <span class="o">:</span> <span class="kd">function</span><span class="p">(</span><span class="nx">models</span><span class="p">,</span> <span class="nx">options</span><span class="p">)</span> <span class="p">{</span>
      <span class="nx">models</span>  <span class="o">||</span> <span class="p">(</span><span class="nx">models</span> <span class="o">=</span> <span class="p">[]);</span>
      <span class="nx">options</span> <span class="o">||</span> <span class="p">(</span><span class="nx">options</span> <span class="o">=</span> <span class="p">{});</span>
      <span class="k">this</span><span class="p">.</span><span class="nx">_reset</span><span class="p">();</span>
      <span class="k">this</span><span class="p">.</span><span class="nx">add</span><span class="p">(</span><span class="nx">models</span><span class="p">,</span> <span class="p">{</span><span class="nx">silent</span><span class="o">:</span> <span class="kc">true</span><span class="p">});</span>
      <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">options</span><span class="p">.</span><span class="nx">silent</span><span class="p">)</span> <span class="k">this</span><span class="p">.</span><span class="nx">trigger</span><span class="p">(</span><span class="s1">&#39;refresh&#39;</span><span class="p">,</span> <span class="k">this</span><span class="p">,</span> <span class="nx">options</span><span class="p">);</span>
      <span class="k">return</span> <span class="k">this</span><span class="p">;</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-61">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-61">&#182;</a>               </div>               <p>Fetch the default set of models for this collection, refreshing the
collection when they arrive.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">fetch</span> <span class="o">:</span> <span class="kd">function</span><span class="p">(</span><span class="nx">options</span><span class="p">)</span> <span class="p">{</span>
      <span class="nx">options</span> <span class="o">||</span> <span class="p">(</span><span class="nx">options</span> <span class="o">=</span> <span class="p">{});</span>
      <span class="kd">var</span> <span class="nx">collection</span> <span class="o">=</span> <span class="k">this</span><span class="p">;</span>
      <span class="kd">var</span> <span class="nx">success</span> <span class="o">=</span> <span class="kd">function</span><span class="p">(</span><span class="nx">resp</span><span class="p">)</span> <span class="p">{</span>
        <span class="nx">collection</span><span class="p">.</span><span class="nx">refresh</span><span class="p">(</span><span class="nx">collection</span><span class="p">.</span><span class="nx">parse</span><span class="p">(</span><span class="nx">resp</span><span class="p">));</span>
        <span class="k">if</span> <span class="p">(</span><span class="nx">options</span><span class="p">.</span><span class="nx">success</span><span class="p">)</span> <span class="nx">options</span><span class="p">.</span><span class="nx">success</span><span class="p">(</span><span class="nx">collection</span><span class="p">,</span> <span class="nx">resp</span><span class="p">);</span>
      <span class="p">};</span>
      <span class="kd">var</span> <span class="nx">error</span> <span class="o">=</span> <span class="nx">wrapError</span><span class="p">(</span><span class="nx">options</span><span class="p">.</span><span class="nx">error</span><span class="p">,</span> <span class="nx">collection</span><span class="p">,</span> <span class="nx">options</span><span class="p">);</span>
      <span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">sync</span> <span class="o">||</span> <span class="nx">Backbone</span><span class="p">.</span><span class="nx">sync</span><span class="p">)(</span><span class="s1">&#39;read&#39;</span><span class="p">,</span> <span class="k">this</span><span class="p">,</span> <span class="nx">success</span><span class="p">,</span> <span class="nx">error</span><span class="p">);</span>
      <span class="k">return</span> <span class="k">this</span><span class="p">;</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-62">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-62">&#182;</a>               </div>               <p>Create a new instance of a model in this collection. After the model
has been created on the server, it will be added to the collection.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">create</span> <span class="o">:</span> <span class="kd">function</span><span class="p">(</span><span class="nx">model</span><span class="p">,</span> <span class="nx">options</span><span class="p">)</span> <span class="p">{</span>
      <span class="kd">var</span> <span class="nx">coll</span> <span class="o">=</span> <span class="k">this</span><span class="p">;</span>
      <span class="nx">options</span> <span class="o">||</span> <span class="p">(</span><span class="nx">options</span> <span class="o">=</span> <span class="p">{});</span>
      <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="p">(</span><span class="nx">model</span> <span class="k">instanceof</span> <span class="nx">Backbone</span><span class="p">.</span><span class="nx">Model</span><span class="p">))</span> <span class="p">{</span>
        <span class="nx">model</span> <span class="o">=</span> <span class="k">new</span> <span class="k">this</span><span class="p">.</span><span class="nx">model</span><span class="p">(</span><span class="nx">model</span><span class="p">,</span> <span class="p">{</span><span class="nx">collection</span><span class="o">:</span> <span class="nx">coll</span><span class="p">});</span>
      <span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
        <span class="nx">model</span><span class="p">.</span><span class="nx">collection</span> <span class="o">=</span> <span class="nx">coll</span><span class="p">;</span>
      <span class="p">}</span>
      <span class="kd">var</span> <span class="nx">success</span> <span class="o">=</span> <span class="kd">function</span><span class="p">(</span><span class="nx">nextModel</span><span class="p">,</span> <span class="nx">resp</span><span class="p">)</span> <span class="p">{</span>
        <span class="nx">coll</span><span class="p">.</span><span class="nx">add</span><span class="p">(</span><span class="nx">nextModel</span><span class="p">);</span>
        <span class="k">if</span> <span class="p">(</span><span class="nx">options</span><span class="p">.</span><span class="nx">success</span><span class="p">)</span> <span class="nx">options</span><span class="p">.</span><span class="nx">success</span><span class="p">(</span><span class="nx">nextModel</span><span class="p">,</span> <span class="nx">resp</span><span class="p">);</span>
      <span class="p">};</span>
      <span class="k">return</span> <span class="nx">model</span><span class="p">.</span><span class="nx">save</span><span class="p">(</span><span class="kc">null</span><span class="p">,</span> <span class="p">{</span><span class="nx">success</span> <span class="o">:</span> <span class="nx">success</span><span class="p">,</span> <span class="nx">error</span> <span class="o">:</span> <span class="nx">options</span><span class="p">.</span><span class="nx">error</span><span class="p">});</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-63">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-63">&#182;</a>               </div>               <p><strong>parse</strong> converts a response into a list of models to be added to the
collection. The default implementation is just to pass it through.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">parse</span> <span class="o">:</span> <span class="kd">function</span><span class="p">(</span><span class="nx">resp</span><span class="p">)</span> <span class="p">{</span>
      <span class="k">return</span> <span class="nx">resp</span><span class="p">;</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-64">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-64">&#182;</a>               </div>               <p>Proxy to _'s chain. Can't be proxied the same way the rest of the
underscore methods are proxied because it relies on the underscore
constructor.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">chain</span><span class="o">:</span> <span class="kd">function</span> <span class="p">()</span> <span class="p">{</span>
      <span class="k">return</span> <span class="nx">_</span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">models</span><span class="p">).</span><span class="nx">chain</span><span class="p">();</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-65">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-65">&#182;</a>               </div>               <p>Reset all internal state. Called when the collection is refreshed.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">_reset</span> <span class="o">:</span> <span class="kd">function</span><span class="p">(</span><span class="nx">options</span><span class="p">)</span> <span class="p">{</span>
      <span class="k">this</span><span class="p">.</span><span class="nx">length</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
      <span class="k">this</span><span class="p">.</span><span class="nx">models</span> <span class="o">=</span> <span class="p">[];</span>
      <span class="k">this</span><span class="p">.</span><span class="nx">_byId</span>  <span class="o">=</span> <span class="p">{};</span>
      <span class="k">this</span><span class="p">.</span><span class="nx">_byCid</span> <span class="o">=</span> <span class="p">{};</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-66">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-66">&#182;</a>               </div>               <p>Internal implementation of adding a single model to the set, updating
hash indexes for <code>id</code> and <code>cid</code> lookups.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">_add</span> <span class="o">:</span> <span class="kd">function</span><span class="p">(</span><span class="nx">model</span><span class="p">,</span> <span class="nx">options</span><span class="p">)</span> <span class="p">{</span>
      <span class="nx">options</span> <span class="o">||</span> <span class="p">(</span><span class="nx">options</span> <span class="o">=</span> <span class="p">{});</span>
      <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="p">(</span><span class="nx">model</span> <span class="k">instanceof</span> <span class="nx">Backbone</span><span class="p">.</span><span class="nx">Model</span><span class="p">))</span> <span class="p">{</span>
        <span class="nx">model</span> <span class="o">=</span> <span class="k">new</span> <span class="k">this</span><span class="p">.</span><span class="nx">model</span><span class="p">(</span><span class="nx">model</span><span class="p">,</span> <span class="p">{</span><span class="nx">collection</span><span class="o">:</span> <span class="k">this</span><span class="p">});</span>
      <span class="p">}</span>
      <span class="kd">var</span> <span class="nx">already</span> <span class="o">=</span> <span class="k">this</span><span class="p">.</span><span class="nx">getByCid</span><span class="p">(</span><span class="nx">model</span><span class="p">);</span>
      <span class="k">if</span> <span class="p">(</span><span class="nx">already</span><span class="p">)</span> <span class="k">throw</span> <span class="k">new</span> <span class="nb">Error</span><span class="p">([</span><span class="s2">&quot;Can&#39;t add the same model to a set twice&quot;</span><span class="p">,</span> <span class="nx">already</span><span class="p">.</span><span class="nx">id</span><span class="p">]);</span>
      <span class="k">this</span><span class="p">.</span><span class="nx">_byId</span><span class="p">[</span><span class="nx">model</span><span class="p">.</span><span class="nx">id</span><span class="p">]</span> <span class="o">=</span> <span class="nx">model</span><span class="p">;</span>
      <span class="k">this</span><span class="p">.</span><span class="nx">_byCid</span><span class="p">[</span><span class="nx">model</span><span class="p">.</span><span class="nx">cid</span><span class="p">]</span> <span class="o">=</span> <span class="nx">model</span><span class="p">;</span>
      <span class="nx">model</span><span class="p">.</span><span class="nx">collection</span> <span class="o">=</span> <span class="k">this</span><span class="p">;</span>
      <span class="kd">var</span> <span class="nx">index</span> <span class="o">=</span> <span class="k">this</span><span class="p">.</span><span class="nx">comparator</span> <span class="o">?</span> <span class="k">this</span><span class="p">.</span><span class="nx">sortedIndex</span><span class="p">(</span><span class="nx">model</span><span class="p">,</span> <span class="k">this</span><span class="p">.</span><span class="nx">comparator</span><span class="p">)</span> <span class="o">:</span> <span class="k">this</span><span class="p">.</span><span class="nx">length</span><span class="p">;</span>
      <span class="k">this</span><span class="p">.</span><span class="nx">models</span><span class="p">.</span><span class="nx">splice</span><span class="p">(</span><span class="nx">index</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="nx">model</span><span class="p">);</span>
      <span class="nx">model</span><span class="p">.</span><span class="nx">bind</span><span class="p">(</span><span class="s1">&#39;all&#39;</span><span class="p">,</span> <span class="k">this</span><span class="p">.</span><span class="nx">_boundOnModelEvent</span><span class="p">);</span>
      <span class="k">this</span><span class="p">.</span><span class="nx">length</span><span class="o">++</span><span class="p">;</span>
      <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">options</span><span class="p">.</span><span class="nx">silent</span><span class="p">)</span> <span class="nx">model</span><span class="p">.</span><span class="nx">trigger</span><span class="p">(</span><span class="s1">&#39;add&#39;</span><span class="p">,</span> <span class="nx">model</span><span class="p">,</span> <span class="k">this</span><span class="p">,</span> <span class="nx">options</span><span class="p">);</span>
      <span class="k">return</span> <span class="nx">model</span><span class="p">;</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-67">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-67">&#182;</a>               </div>               <p>Internal implementation of removing a single model from the set, updating
hash indexes for <code>id</code> and <code>cid</code> lookups.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">_remove</span> <span class="o">:</span> <span class="kd">function</span><span class="p">(</span><span class="nx">model</span><span class="p">,</span> <span class="nx">options</span><span class="p">)</span> <span class="p">{</span>
      <span class="nx">options</span> <span class="o">||</span> <span class="p">(</span><span class="nx">options</span> <span class="o">=</span> <span class="p">{});</span>
      <span class="nx">model</span> <span class="o">=</span> <span class="k">this</span><span class="p">.</span><span class="nx">getByCid</span><span class="p">(</span><span class="nx">model</span><span class="p">)</span> <span class="o">||</span> <span class="k">this</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="nx">model</span><span class="p">);</span>
      <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">model</span><span class="p">)</span> <span class="k">return</span> <span class="kc">null</span><span class="p">;</span>
      <span class="k">delete</span> <span class="k">this</span><span class="p">.</span><span class="nx">_byId</span><span class="p">[</span><span class="nx">model</span><span class="p">.</span><span class="nx">id</span><span class="p">];</span>
      <span class="k">delete</span> <span class="k">this</span><span class="p">.</span><span class="nx">_byCid</span><span class="p">[</span><span class="nx">model</span><span class="p">.</span><span class="nx">cid</span><span class="p">];</span>
      <span class="k">delete</span> <span class="nx">model</span><span class="p">.</span><span class="nx">collection</span><span class="p">;</span>
      <span class="k">this</span><span class="p">.</span><span class="nx">models</span><span class="p">.</span><span class="nx">splice</span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">indexOf</span><span class="p">(</span><span class="nx">model</span><span class="p">),</span> <span class="mi">1</span><span class="p">);</span>
      <span class="k">this</span><span class="p">.</span><span class="nx">length</span><span class="o">--</span><span class="p">;</span>
      <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">options</span><span class="p">.</span><span class="nx">silent</span><span class="p">)</span> <span class="nx">model</span><span class="p">.</span><span class="nx">trigger</span><span class="p">(</span><span class="s1">&#39;remove&#39;</span><span class="p">,</span> <span class="nx">model</span><span class="p">,</span> <span class="k">this</span><span class="p">,</span> <span class="nx">options</span><span class="p">);</span>
      <span class="nx">model</span><span class="p">.</span><span class="nx">unbind</span><span class="p">(</span><span class="s1">&#39;all&#39;</span><span class="p">,</span> <span class="k">this</span><span class="p">.</span><span class="nx">_boundOnModelEvent</span><span class="p">);</span>
      <span class="k">return</span> <span class="nx">model</span><span class="p">;</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-68">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-68">&#182;</a>               </div>               <p>Internal method called every time a model in the set fires an event.
Sets need to update their indexes when models change ids. All other
events simply proxy through.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">_onModelEvent</span> <span class="o">:</span> <span class="kd">function</span><span class="p">(</span><span class="nx">ev</span><span class="p">,</span> <span class="nx">model</span><span class="p">)</span> <span class="p">{</span>
      <span class="k">if</span> <span class="p">(</span><span class="nx">ev</span> <span class="o">===</span> <span class="s1">&#39;change:id&#39;</span><span class="p">)</span> <span class="p">{</span>
        <span class="k">delete</span> <span class="k">this</span><span class="p">.</span><span class="nx">_byId</span><span class="p">[</span><span class="nx">model</span><span class="p">.</span><span class="nx">previous</span><span class="p">(</span><span class="s1">&#39;id&#39;</span><span class="p">)];</span>
        <span class="k">this</span><span class="p">.</span><span class="nx">_byId</span><span class="p">[</span><span class="nx">model</span><span class="p">.</span><span class="nx">id</span><span class="p">]</span> <span class="o">=</span> <span class="nx">model</span><span class="p">;</span>
      <span class="p">}</span>
      <span class="k">this</span><span class="p">.</span><span class="nx">trigger</span><span class="p">.</span><span class="nx">apply</span><span class="p">(</span><span class="k">this</span><span class="p">,</span> <span class="nx">arguments</span><span class="p">);</span>
    <span class="p">}</span>

  <span class="p">});</span></pre></div>             </td>           </tr>                               <tr id="section-69">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-69">&#182;</a>               </div>               <p>Underscore methods that we want to implement on the Collection.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="kd">var</span> <span class="nx">methods</span> <span class="o">=</span> <span class="p">[</span><span class="s1">&#39;forEach&#39;</span><span class="p">,</span> <span class="s1">&#39;each&#39;</span><span class="p">,</span> <span class="s1">&#39;map&#39;</span><span class="p">,</span> <span class="s1">&#39;reduce&#39;</span><span class="p">,</span> <span class="s1">&#39;reduceRight&#39;</span><span class="p">,</span> <span class="s1">&#39;find&#39;</span><span class="p">,</span> <span class="s1">&#39;detect&#39;</span><span class="p">,</span>
    <span class="s1">&#39;filter&#39;</span><span class="p">,</span> <span class="s1">&#39;select&#39;</span><span class="p">,</span> <span class="s1">&#39;reject&#39;</span><span class="p">,</span> <span class="s1">&#39;every&#39;</span><span class="p">,</span> <span class="s1">&#39;all&#39;</span><span class="p">,</span> <span class="s1">&#39;some&#39;</span><span class="p">,</span> <span class="s1">&#39;any&#39;</span><span class="p">,</span> <span class="s1">&#39;include&#39;</span><span class="p">,</span>
    <span class="s1">&#39;invoke&#39;</span><span class="p">,</span> <span class="s1">&#39;max&#39;</span><span class="p">,</span> <span class="s1">&#39;min&#39;</span><span class="p">,</span> <span class="s1">&#39;sortBy&#39;</span><span class="p">,</span> <span class="s1">&#39;sortedIndex&#39;</span><span class="p">,</span> <span class="s1">&#39;toArray&#39;</span><span class="p">,</span> <span class="s1">&#39;size&#39;</span><span class="p">,</span>
    <span class="s1">&#39;first&#39;</span><span class="p">,</span> <span class="s1">&#39;rest&#39;</span><span class="p">,</span> <span class="s1">&#39;last&#39;</span><span class="p">,</span> <span class="s1">&#39;without&#39;</span><span class="p">,</span> <span class="s1">&#39;indexOf&#39;</span><span class="p">,</span> <span class="s1">&#39;lastIndexOf&#39;</span><span class="p">,</span> <span class="s1">&#39;isEmpty&#39;</span><span class="p">];</span></pre></div>             </td>           </tr>                               <tr id="section-70">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-70">&#182;</a>               </div>               <p>Mix in each Underscore method as a proxy to <code>Collection#models</code>.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nx">_</span><span class="p">.</span><span class="nx">each</span><span class="p">(</span><span class="nx">methods</span><span class="p">,</span> <span class="kd">function</span><span class="p">(</span><span class="nx">method</span><span class="p">)</span> <span class="p">{</span>
    <span class="nx">Backbone</span><span class="p">.</span><span class="nx">Collection</span><span class="p">.</span><span class="nx">prototype</span><span class="p">[</span><span class="nx">method</span><span class="p">]</span> <span class="o">=</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
      <span class="k">return</span> <span class="nx">_</span><span class="p">[</span><span class="nx">method</span><span class="p">].</span><span class="nx">apply</span><span class="p">(</span><span class="nx">_</span><span class="p">,</span> <span class="p">[</span><span class="k">this</span><span class="p">.</span><span class="nx">models</span><span class="p">].</span><span class="nx">concat</span><span class="p">(</span><span class="nx">_</span><span class="p">.</span><span class="nx">toArray</span><span class="p">(</span><span class="nx">arguments</span><span class="p">)));</span>
    <span class="p">};</span>
  <span class="p">});</span></pre></div>             </td>           </tr>                               <tr id="section-71">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-71">&#182;</a>               </div>               <h2>Backbone.Controller</h2>             </td>             <td class="code">               <div class="highlight"><pre></pre></div>             </td>           </tr>                               <tr id="section-72">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-72">&#182;</a>               </div>               <p>Controllers map faux-URLs to actions, and fire events when routes are
matched. Creating a new one sets its <code>routes</code> hash, if not set statically.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nx">Backbone</span><span class="p">.</span><span class="nx">Controller</span> <span class="o">=</span> <span class="kd">function</span><span class="p">(</span><span class="nx">options</span><span class="p">)</span> <span class="p">{</span>
    <span class="nx">options</span> <span class="o">||</span> <span class="p">(</span><span class="nx">options</span> <span class="o">=</span> <span class="p">{});</span>
    <span class="k">if</span> <span class="p">(</span><span class="nx">options</span><span class="p">.</span><span class="nx">routes</span><span class="p">)</span> <span class="k">this</span><span class="p">.</span><span class="nx">routes</span> <span class="o">=</span> <span class="nx">options</span><span class="p">.</span><span class="nx">routes</span><span class="p">;</span>
    <span class="k">this</span><span class="p">.</span><span class="nx">_bindRoutes</span><span class="p">();</span>
    <span class="k">this</span><span class="p">.</span><span class="nx">initialize</span><span class="p">(</span><span class="nx">options</span><span class="p">);</span>
  <span class="p">};</span></pre></div>             </td>           </tr>                               <tr id="section-73">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-73">&#182;</a>               </div>               <p>Cached regular expressions for matching named param parts and splatted
parts of route strings.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="kd">var</span> <span class="nx">namedParam</span> <span class="o">=</span> <span class="sr">/:([\w\d]+)/g</span><span class="p">;</span>
  <span class="kd">var</span> <span class="nx">splatParam</span> <span class="o">=</span> <span class="sr">/\*([\w\d]+)/g</span><span class="p">;</span></pre></div>             </td>           </tr>                               <tr id="section-74">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-74">&#182;</a>               </div>               <p>Set up all inheritable <strong>Backbone.Controller</strong> properties and methods.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nx">_</span><span class="p">.</span><span class="nx">extend</span><span class="p">(</span><span class="nx">Backbone</span><span class="p">.</span><span class="nx">Controller</span><span class="p">.</span><span class="nx">prototype</span><span class="p">,</span> <span class="nx">Backbone</span><span class="p">.</span><span class="nx">Events</span><span class="p">,</span> <span class="p">{</span></pre></div>             </td>           </tr>                               <tr id="section-75">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-75">&#182;</a>               </div>               <p>Initialize is an empty function by default. Override it with your own
initialization logic.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">initialize</span> <span class="o">:</span> <span class="kd">function</span><span class="p">(){},</span></pre></div>             </td>           </tr>                               <tr id="section-76">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-76">&#182;</a>               </div>               <p>Manually bind a single named route to a callback. For example:</p>

<pre><code>this.route('search/:query/p:num', 'search', function(query, num) {
  ...
});
</code></pre>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">route</span> <span class="o">:</span> <span class="kd">function</span><span class="p">(</span><span class="nx">route</span><span class="p">,</span> <span class="nx">name</span><span class="p">,</span> <span class="nx">callback</span><span class="p">)</span> <span class="p">{</span>
      <span class="nx">Backbone</span><span class="p">.</span><span class="nx">history</span> <span class="o">||</span> <span class="p">(</span><span class="nx">Backbone</span><span class="p">.</span><span class="nx">history</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">Backbone</span><span class="p">.</span><span class="nx">History</span><span class="p">);</span>
      <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">_</span><span class="p">.</span><span class="nx">isRegExp</span><span class="p">(</span><span class="nx">route</span><span class="p">))</span> <span class="nx">route</span> <span class="o">=</span> <span class="k">this</span><span class="p">.</span><span class="nx">_routeToRegExp</span><span class="p">(</span><span class="nx">route</span><span class="p">);</span>
      <span class="nx">Backbone</span><span class="p">.</span><span class="nx">history</span><span class="p">.</span><span class="nx">route</span><span class="p">(</span><span class="nx">route</span><span class="p">,</span> <span class="nx">_</span><span class="p">.</span><span class="nx">bind</span><span class="p">(</span><span class="kd">function</span><span class="p">(</span><span class="nx">fragment</span><span class="p">)</span> <span class="p">{</span>
        <span class="kd">var</span> <span class="nx">args</span> <span class="o">=</span> <span class="k">this</span><span class="p">.</span><span class="nx">_extractParameters</span><span class="p">(</span><span class="nx">route</span><span class="p">,</span> <span class="nx">fragment</span><span class="p">);</span>
        <span class="nx">callback</span><span class="p">.</span><span class="nx">apply</span><span class="p">(</span><span class="k">this</span><span class="p">,</span> <span class="nx">args</span><span class="p">);</span>
        <span class="k">this</span><span class="p">.</span><span class="nx">trigger</span><span class="p">.</span><span class="nx">apply</span><span class="p">(</span><span class="k">this</span><span class="p">,</span> <span class="p">[</span><span class="s1">&#39;route:&#39;</span> <span class="o">+</span> <span class="nx">name</span><span class="p">].</span><span class="nx">concat</span><span class="p">(</span><span class="nx">args</span><span class="p">));</span>
      <span class="p">},</span> <span class="k">this</span><span class="p">));</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-77">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-77">&#182;</a>               </div>               <p>Simple proxy to <code>Backbone.history</code> to save a fragment into the history,
without triggering routes.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">saveLocation</span> <span class="o">:</span> <span class="kd">function</span><span class="p">(</span><span class="nx">fragment</span><span class="p">)</span> <span class="p">{</span>
      <span class="nx">Backbone</span><span class="p">.</span><span class="nx">history</span><span class="p">.</span><span class="nx">saveLocation</span><span class="p">(</span><span class="nx">fragment</span><span class="p">);</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-78">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-78">&#182;</a>               </div>               <p>Bind all defined routes to <code>Backbone.history</code>.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">_bindRoutes</span> <span class="o">:</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
      <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="k">this</span><span class="p">.</span><span class="nx">routes</span><span class="p">)</span> <span class="k">return</span><span class="p">;</span>
      <span class="k">for</span> <span class="p">(</span><span class="kd">var</span> <span class="nx">route</span> <span class="k">in</span> <span class="k">this</span><span class="p">.</span><span class="nx">routes</span><span class="p">)</span> <span class="p">{</span>
        <span class="kd">var</span> <span class="nx">name</span> <span class="o">=</span> <span class="k">this</span><span class="p">.</span><span class="nx">routes</span><span class="p">[</span><span class="nx">route</span><span class="p">];</span>
        <span class="k">this</span><span class="p">.</span><span class="nx">route</span><span class="p">(</span><span class="nx">route</span><span class="p">,</span> <span class="nx">name</span><span class="p">,</span> <span class="k">this</span><span class="p">[</span><span class="nx">name</span><span class="p">]);</span>
      <span class="p">}</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-79">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-79">&#182;</a>               </div>               <p>Convert a route string into a regular expression, suitable for matching
against the current location fragment.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">_routeToRegExp</span> <span class="o">:</span> <span class="kd">function</span><span class="p">(</span><span class="nx">route</span><span class="p">)</span> <span class="p">{</span>
      <span class="nx">route</span> <span class="o">=</span> <span class="nx">route</span><span class="p">.</span><span class="nx">replace</span><span class="p">(</span><span class="nx">namedParam</span><span class="p">,</span> <span class="s2">&quot;([^\/]*)&quot;</span><span class="p">).</span><span class="nx">replace</span><span class="p">(</span><span class="nx">splatParam</span><span class="p">,</span> <span class="s2">&quot;(.*?)&quot;</span><span class="p">);</span>
      <span class="k">return</span> <span class="k">new</span> <span class="nb">RegExp</span><span class="p">(</span><span class="s1">&#39;^&#39;</span> <span class="o">+</span> <span class="nx">route</span> <span class="o">+</span> <span class="s1">&#39;$&#39;</span><span class="p">);</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-80">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-80">&#182;</a>               </div>               <p>Given a route, and a URL fragment that it matches, return the array of
extracted parameters.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">_extractParameters</span> <span class="o">:</span> <span class="kd">function</span><span class="p">(</span><span class="nx">route</span><span class="p">,</span> <span class="nx">fragment</span><span class="p">)</span> <span class="p">{</span>
      <span class="k">return</span> <span class="nx">route</span><span class="p">.</span><span class="nx">exec</span><span class="p">(</span><span class="nx">fragment</span><span class="p">).</span><span class="nx">slice</span><span class="p">(</span><span class="mi">1</span><span class="p">);</span>
    <span class="p">}</span>

  <span class="p">});</span></pre></div>             </td>           </tr>                               <tr id="section-81">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-81">&#182;</a>               </div>               <h2>Backbone.History</h2>             </td>             <td class="code">               <div class="highlight"><pre></pre></div>             </td>           </tr>                               <tr id="section-82">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-82">&#182;</a>               </div>               <p>Handles cross-browser history management, based on URL hashes. If the
browser does not support <code>onhashchange</code>, falls back to polling.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nx">Backbone</span><span class="p">.</span><span class="nx">History</span> <span class="o">=</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
    <span class="k">this</span><span class="p">.</span><span class="nx">handlers</span> <span class="o">=</span> <span class="p">[];</span>
    <span class="k">this</span><span class="p">.</span><span class="nx">fragment</span> <span class="o">=</span> <span class="k">this</span><span class="p">.</span><span class="nx">getFragment</span><span class="p">();</span>
    <span class="nx">_</span><span class="p">.</span><span class="nx">bindAll</span><span class="p">(</span><span class="k">this</span><span class="p">,</span> <span class="s1">&#39;checkUrl&#39;</span><span class="p">);</span>
  <span class="p">};</span></pre></div>             </td>           </tr>                               <tr id="section-83">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-83">&#182;</a>               </div>               <p>Cached regex for cleaning hashes.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="kd">var</span> <span class="nx">hashStrip</span> <span class="o">=</span> <span class="sr">/^#*/</span><span class="p">;</span></pre></div>             </td>           </tr>                               <tr id="section-84">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-84">&#182;</a>               </div>               <p>Set up all inheritable <strong>Backbone.History</strong> properties and methods.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nx">_</span><span class="p">.</span><span class="nx">extend</span><span class="p">(</span><span class="nx">Backbone</span><span class="p">.</span><span class="nx">History</span><span class="p">.</span><span class="nx">prototype</span><span class="p">,</span> <span class="p">{</span></pre></div>             </td>           </tr>                               <tr id="section-85">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-85">&#182;</a>               </div>               <p>The default interval to poll for hash changes, if necessary, is
twenty times a second.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">interval</span><span class="o">:</span> <span class="mi">50</span><span class="p">,</span></pre></div>             </td>           </tr>                               <tr id="section-86">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-86">&#182;</a>               </div>               <p>Get the cross-browser normalized URL fragment.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">getFragment</span> <span class="o">:</span> <span class="kd">function</span><span class="p">(</span><span class="nx">loc</span><span class="p">)</span> <span class="p">{</span>
      <span class="k">return</span> <span class="p">(</span><span class="nx">loc</span> <span class="o">||</span> <span class="nb">window</span><span class="p">.</span><span class="nx">location</span><span class="p">).</span><span class="nx">hash</span><span class="p">.</span><span class="nx">replace</span><span class="p">(</span><span class="nx">hashStrip</span><span class="p">,</span> <span class="s1">&#39;&#39;</span><span class="p">);</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-87">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-87">&#182;</a>               </div>               <p>Start the hash change handling, returning <code>true</code> if the current URL matches
an existing route, and <code>false</code> otherwise.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">start</span> <span class="o">:</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
      <span class="kd">var</span> <span class="nx">docMode</span> <span class="o">=</span> <span class="nb">document</span><span class="p">.</span><span class="nx">documentMode</span><span class="p">;</span>
      <span class="kd">var</span> <span class="nx">oldIE</span> <span class="o">=</span> <span class="p">(</span><span class="nx">$</span><span class="p">.</span><span class="nx">browser</span><span class="p">.</span><span class="nx">msie</span> <span class="o">&amp;&amp;</span> <span class="p">(</span><span class="o">!</span><span class="nx">docMode</span> <span class="o">||</span> <span class="nx">docMode</span> <span class="o">&lt;=</span> <span class="mi">7</span><span class="p">));</span>
      <span class="k">if</span> <span class="p">(</span><span class="nx">oldIE</span><span class="p">)</span> <span class="p">{</span>
        <span class="k">this</span><span class="p">.</span><span class="nx">iframe</span> <span class="o">=</span> <span class="nx">$</span><span class="p">(</span><span class="s1">&#39;&lt;iframe src=&quot;javascript:0&quot; tabindex=&quot;-1&quot; /&gt;&#39;</span><span class="p">).</span><span class="nx">hide</span><span class="p">().</span><span class="nx">appendTo</span><span class="p">(</span><span class="s1">&#39;body&#39;</span><span class="p">)[</span><span class="mi">0</span><span class="p">].</span><span class="nx">contentWindow</span><span class="p">;</span>
      <span class="p">}</span>
      <span class="k">if</span> <span class="p">(</span><span class="s1">&#39;onhashchange&#39;</span> <span class="k">in</span> <span class="nb">window</span> <span class="o">&amp;&amp;</span> <span class="o">!</span><span class="nx">oldIE</span><span class="p">)</span> <span class="p">{</span>
        <span class="nx">$</span><span class="p">(</span><span class="nb">window</span><span class="p">).</span><span class="nx">bind</span><span class="p">(</span><span class="s1">&#39;hashchange&#39;</span><span class="p">,</span> <span class="k">this</span><span class="p">.</span><span class="nx">checkUrl</span><span class="p">);</span>
      <span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
        <span class="nx">setInterval</span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">checkUrl</span><span class="p">,</span> <span class="k">this</span><span class="p">.</span><span class="nx">interval</span><span class="p">);</span>
      <span class="p">}</span>
      <span class="k">return</span> <span class="k">this</span><span class="p">.</span><span class="nx">loadUrl</span><span class="p">();</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-88">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-88">&#182;</a>               </div>               <p>Add a route to be tested when the hash changes. Routes are matched in the
order they are added.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">route</span> <span class="o">:</span> <span class="kd">function</span><span class="p">(</span><span class="nx">route</span><span class="p">,</span> <span class="nx">callback</span><span class="p">)</span> <span class="p">{</span>
      <span class="k">this</span><span class="p">.</span><span class="nx">handlers</span><span class="p">.</span><span class="nx">push</span><span class="p">({</span><span class="nx">route</span> <span class="o">:</span> <span class="nx">route</span><span class="p">,</span> <span class="nx">callback</span> <span class="o">:</span> <span class="nx">callback</span><span class="p">});</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-89">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-89">&#182;</a>               </div>               <p>Checks the current URL to see if it has changed, and if it has,
calls <code>loadUrl</code>, normalizing across the hidden iframe.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">checkUrl</span> <span class="o">:</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
      <span class="kd">var</span> <span class="nx">current</span> <span class="o">=</span> <span class="k">this</span><span class="p">.</span><span class="nx">getFragment</span><span class="p">();</span>
      <span class="k">if</span> <span class="p">(</span><span class="nx">current</span> <span class="o">==</span> <span class="k">this</span><span class="p">.</span><span class="nx">fragment</span> <span class="o">&amp;&amp;</span> <span class="k">this</span><span class="p">.</span><span class="nx">iframe</span><span class="p">)</span> <span class="p">{</span>
        <span class="nx">current</span> <span class="o">=</span> <span class="k">this</span><span class="p">.</span><span class="nx">getFragment</span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">iframe</span><span class="p">.</span><span class="nx">location</span><span class="p">);</span>
      <span class="p">}</span>
      <span class="k">if</span> <span class="p">(</span><span class="nx">current</span> <span class="o">==</span> <span class="k">this</span><span class="p">.</span><span class="nx">fragment</span> <span class="o">||</span>
          <span class="nx">current</span> <span class="o">==</span> <span class="nb">decodeURIComponent</span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">fragment</span><span class="p">))</span> <span class="k">return</span> <span class="kc">false</span><span class="p">;</span>
      <span class="k">if</span> <span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">iframe</span><span class="p">)</span> <span class="p">{</span>
        <span class="nb">window</span><span class="p">.</span><span class="nx">location</span><span class="p">.</span><span class="nx">hash</span> <span class="o">=</span> <span class="k">this</span><span class="p">.</span><span class="nx">iframe</span><span class="p">.</span><span class="nx">location</span><span class="p">.</span><span class="nx">hash</span> <span class="o">=</span> <span class="nx">current</span><span class="p">;</span>
      <span class="p">}</span>
      <span class="k">this</span><span class="p">.</span><span class="nx">loadUrl</span><span class="p">();</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-90">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-90">&#182;</a>               </div>               <p>Attempt to load the current URL fragment. If a route succeeds with a
match, returns <code>true</code>. If no defined routes matches the fragment,
returns <code>false</code>.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">loadUrl</span> <span class="o">:</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
      <span class="kd">var</span> <span class="nx">fragment</span> <span class="o">=</span> <span class="k">this</span><span class="p">.</span><span class="nx">fragment</span> <span class="o">=</span> <span class="k">this</span><span class="p">.</span><span class="nx">getFragment</span><span class="p">();</span>
      <span class="kd">var</span> <span class="nx">matched</span> <span class="o">=</span> <span class="nx">_</span><span class="p">.</span><span class="nx">any</span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">handlers</span><span class="p">,</span> <span class="kd">function</span><span class="p">(</span><span class="nx">handler</span><span class="p">)</span> <span class="p">{</span>
        <span class="k">if</span> <span class="p">(</span><span class="nx">handler</span><span class="p">.</span><span class="nx">route</span><span class="p">.</span><span class="nx">test</span><span class="p">(</span><span class="nx">fragment</span><span class="p">))</span> <span class="p">{</span>
          <span class="nx">handler</span><span class="p">.</span><span class="nx">callback</span><span class="p">(</span><span class="nx">fragment</span><span class="p">);</span>
          <span class="k">return</span> <span class="kc">true</span><span class="p">;</span>
        <span class="p">}</span>
      <span class="p">});</span>
      <span class="k">return</span> <span class="nx">matched</span><span class="p">;</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-91">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-91">&#182;</a>               </div>               <p>Save a fragment into the hash history. You are responsible for properly
URL-encoding the fragment in advance. This does not trigger
a <code>hashchange</code> event.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">saveLocation</span> <span class="o">:</span> <span class="kd">function</span><span class="p">(</span><span class="nx">fragment</span><span class="p">)</span> <span class="p">{</span>
      <span class="nx">fragment</span> <span class="o">=</span> <span class="p">(</span><span class="nx">fragment</span> <span class="o">||</span> <span class="s1">&#39;&#39;</span><span class="p">).</span><span class="nx">replace</span><span class="p">(</span><span class="nx">hashStrip</span><span class="p">,</span> <span class="s1">&#39;&#39;</span><span class="p">);</span>
      <span class="k">if</span> <span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">fragment</span> <span class="o">==</span> <span class="nx">fragment</span><span class="p">)</span> <span class="k">return</span><span class="p">;</span>
      <span class="nb">window</span><span class="p">.</span><span class="nx">location</span><span class="p">.</span><span class="nx">hash</span> <span class="o">=</span> <span class="k">this</span><span class="p">.</span><span class="nx">fragment</span> <span class="o">=</span> <span class="nx">fragment</span><span class="p">;</span>
      <span class="k">if</span> <span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">iframe</span> <span class="o">&amp;&amp;</span> <span class="p">(</span><span class="nx">fragment</span> <span class="o">!=</span> <span class="k">this</span><span class="p">.</span><span class="nx">getFragment</span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">iframe</span><span class="p">.</span><span class="nx">location</span><span class="p">)))</span> <span class="p">{</span>
        <span class="k">this</span><span class="p">.</span><span class="nx">iframe</span><span class="p">.</span><span class="nb">document</span><span class="p">.</span><span class="nx">open</span><span class="p">().</span><span class="nx">close</span><span class="p">();</span>
        <span class="k">this</span><span class="p">.</span><span class="nx">iframe</span><span class="p">.</span><span class="nx">location</span><span class="p">.</span><span class="nx">hash</span> <span class="o">=</span> <span class="nx">fragment</span><span class="p">;</span>
      <span class="p">}</span>
    <span class="p">}</span>

  <span class="p">});</span></pre></div>             </td>           </tr>                               <tr id="section-92">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-92">&#182;</a>               </div>               <h2>Backbone.View</h2>             </td>             <td class="code">               <div class="highlight"><pre></pre></div>             </td>           </tr>                               <tr id="section-93">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-93">&#182;</a>               </div>               <p>Creating a Backbone.View creates its initial element outside of the DOM,
if an existing element is not provided...</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nx">Backbone</span><span class="p">.</span><span class="nx">View</span> <span class="o">=</span> <span class="kd">function</span><span class="p">(</span><span class="nx">options</span><span class="p">)</span> <span class="p">{</span>
    <span class="k">this</span><span class="p">.</span><span class="nx">_configure</span><span class="p">(</span><span class="nx">options</span> <span class="o">||</span> <span class="p">{});</span>
    <span class="k">this</span><span class="p">.</span><span class="nx">_ensureElement</span><span class="p">();</span>
    <span class="k">this</span><span class="p">.</span><span class="nx">delegateEvents</span><span class="p">();</span>
    <span class="k">this</span><span class="p">.</span><span class="nx">initialize</span><span class="p">(</span><span class="nx">options</span><span class="p">);</span>
  <span class="p">};</span></pre></div>             </td>           </tr>                               <tr id="section-94">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-94">&#182;</a>               </div>               <p>Element lookup, scoped to DOM elements within the current view.
This should be prefered to global lookups, if you're dealing with
a specific view.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="kd">var</span> <span class="nx">selectorDelegate</span> <span class="o">=</span> <span class="kd">function</span><span class="p">(</span><span class="nx">selector</span><span class="p">)</span> <span class="p">{</span>
    <span class="k">return</span> <span class="nx">$</span><span class="p">(</span><span class="nx">selector</span><span class="p">,</span> <span class="k">this</span><span class="p">.</span><span class="nx">el</span><span class="p">);</span>
  <span class="p">};</span></pre></div>             </td>           </tr>                               <tr id="section-95">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-95">&#182;</a>               </div>               <p>Cached regex to split keys for <code>delegate</code>.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="kd">var</span> <span class="nx">eventSplitter</span> <span class="o">=</span> <span class="sr">/^(\w+)\s*(.*)$/</span><span class="p">;</span></pre></div>             </td>           </tr>                               <tr id="section-96">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-96">&#182;</a>               </div>               <p>Set up all inheritable <strong>Backbone.View</strong> properties and methods.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nx">_</span><span class="p">.</span><span class="nx">extend</span><span class="p">(</span><span class="nx">Backbone</span><span class="p">.</span><span class="nx">View</span><span class="p">.</span><span class="nx">prototype</span><span class="p">,</span> <span class="nx">Backbone</span><span class="p">.</span><span class="nx">Events</span><span class="p">,</span> <span class="p">{</span></pre></div>             </td>           </tr>                               <tr id="section-97">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-97">&#182;</a>               </div>               <p>The default <code>tagName</code> of a View's element is <code>"div"</code>.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">tagName</span> <span class="o">:</span> <span class="s1">&#39;div&#39;</span><span class="p">,</span></pre></div>             </td>           </tr>                               <tr id="section-98">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-98">&#182;</a>               </div>               <p>Attach the <code>selectorDelegate</code> function as the <code>$</code> property.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">$</span>       <span class="o">:</span> <span class="nx">selectorDelegate</span><span class="p">,</span></pre></div>             </td>           </tr>                               <tr id="section-99">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-99">&#182;</a>               </div>               <p>Initialize is an empty function by default. Override it with your own
initialization logic.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">initialize</span> <span class="o">:</span> <span class="kd">function</span><span class="p">(){},</span></pre></div>             </td>           </tr>                               <tr id="section-100">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-100">&#182;</a>               </div>               <p><strong>render</strong> is the core function that your view should override, in order
to populate its element (<code>this.el</code>), with the appropriate HTML. The
convention is for <strong>render</strong> to always return <code>this</code>.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">render</span> <span class="o">:</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
      <span class="k">return</span> <span class="k">this</span><span class="p">;</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-101">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-101">&#182;</a>               </div>               <p>Remove this view from the DOM. Note that the view isn't present in the
DOM by default, so calling this method may be a no-op.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">remove</span> <span class="o">:</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
      <span class="nx">$</span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">el</span><span class="p">).</span><span class="nx">remove</span><span class="p">();</span>
      <span class="k">return</span> <span class="k">this</span><span class="p">;</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-102">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-102">&#182;</a>               </div>               <p>For small amounts of DOM Elements, where a full-blown template isn't
needed, use <strong>make</strong> to manufacture elements, one at a time.</p>

<pre><code>var el = this.make('li', {'class': 'row'}, this.model.get('title'));
</code></pre>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">make</span> <span class="o">:</span> <span class="kd">function</span><span class="p">(</span><span class="nx">tagName</span><span class="p">,</span> <span class="nx">attributes</span><span class="p">,</span> <span class="nx">content</span><span class="p">)</span> <span class="p">{</span>
      <span class="kd">var</span> <span class="nx">el</span> <span class="o">=</span> <span class="nb">document</span><span class="p">.</span><span class="nx">createElement</span><span class="p">(</span><span class="nx">tagName</span><span class="p">);</span>
      <span class="k">if</span> <span class="p">(</span><span class="nx">attributes</span><span class="p">)</span> <span class="nx">$</span><span class="p">(</span><span class="nx">el</span><span class="p">).</span><span class="nx">attr</span><span class="p">(</span><span class="nx">attributes</span><span class="p">);</span>
      <span class="k">if</span> <span class="p">(</span><span class="nx">content</span><span class="p">)</span> <span class="nx">$</span><span class="p">(</span><span class="nx">el</span><span class="p">).</span><span class="nx">html</span><span class="p">(</span><span class="nx">content</span><span class="p">);</span>
      <span class="k">return</span> <span class="nx">el</span><span class="p">;</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-103">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-103">&#182;</a>               </div>               <p>Set callbacks, where <code>this.callbacks</code> is a hash of</p>

<p><em>{"event selector": "callback"}</em></p>

<pre><code>{
  'mousedown .title':  'edit',
  'click .button':     'save'
}
</code></pre>

<p>pairs. Callbacks will be bound to the view, with <code>this</code> set properly.
Uses event delegation for efficiency.
Omitting the selector binds the event to <code>this.el</code>.
This only works for delegate-able events: not <code>focus</code>, <code>blur</code>, and
not <code>change</code>, <code>submit</code>, and <code>reset</code> in Internet Explorer.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">delegateEvents</span> <span class="o">:</span> <span class="kd">function</span><span class="p">(</span><span class="nx">events</span><span class="p">)</span> <span class="p">{</span>
      <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="p">(</span><span class="nx">events</span> <span class="o">||</span> <span class="p">(</span><span class="nx">events</span> <span class="o">=</span> <span class="k">this</span><span class="p">.</span><span class="nx">events</span><span class="p">)))</span> <span class="k">return</span><span class="p">;</span>
      <span class="nx">$</span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">el</span><span class="p">).</span><span class="nx">unbind</span><span class="p">();</span>
      <span class="k">for</span> <span class="p">(</span><span class="kd">var</span> <span class="nx">key</span> <span class="k">in</span> <span class="nx">events</span><span class="p">)</span> <span class="p">{</span>
        <span class="kd">var</span> <span class="nx">methodName</span> <span class="o">=</span> <span class="nx">events</span><span class="p">[</span><span class="nx">key</span><span class="p">];</span>
        <span class="kd">var</span> <span class="nx">match</span> <span class="o">=</span> <span class="nx">key</span><span class="p">.</span><span class="nx">match</span><span class="p">(</span><span class="nx">eventSplitter</span><span class="p">);</span>
        <span class="kd">var</span> <span class="nx">eventName</span> <span class="o">=</span> <span class="nx">match</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="nx">selector</span> <span class="o">=</span> <span class="nx">match</span><span class="p">[</span><span class="mi">2</span><span class="p">];</span>
        <span class="kd">var</span> <span class="nx">method</span> <span class="o">=</span> <span class="nx">_</span><span class="p">.</span><span class="nx">bind</span><span class="p">(</span><span class="k">this</span><span class="p">[</span><span class="nx">methodName</span><span class="p">],</span> <span class="k">this</span><span class="p">);</span>
        <span class="k">if</span> <span class="p">(</span><span class="nx">selector</span> <span class="o">===</span> <span class="s1">&#39;&#39;</span><span class="p">)</span> <span class="p">{</span>
          <span class="nx">$</span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">el</span><span class="p">).</span><span class="nx">bind</span><span class="p">(</span><span class="nx">eventName</span><span class="p">,</span> <span class="nx">method</span><span class="p">);</span>
        <span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
          <span class="nx">$</span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">el</span><span class="p">).</span><span class="nx">delegate</span><span class="p">(</span><span class="nx">selector</span><span class="p">,</span> <span class="nx">eventName</span><span class="p">,</span> <span class="nx">method</span><span class="p">);</span>
        <span class="p">}</span>
      <span class="p">}</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-104">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-104">&#182;</a>               </div>               <p>Performs the initial configuration of a View with a set of options.
Keys with special meaning <em>(model, collection, id, className)</em>, are
attached directly to the view.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">_configure</span> <span class="o">:</span> <span class="kd">function</span><span class="p">(</span><span class="nx">options</span><span class="p">)</span> <span class="p">{</span>
      <span class="k">if</span> <span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">options</span><span class="p">)</span> <span class="nx">options</span> <span class="o">=</span> <span class="nx">_</span><span class="p">.</span><span class="nx">extend</span><span class="p">({},</span> <span class="k">this</span><span class="p">.</span><span class="nx">options</span><span class="p">,</span> <span class="nx">options</span><span class="p">);</span>
      <span class="k">if</span> <span class="p">(</span><span class="nx">options</span><span class="p">.</span><span class="nx">model</span><span class="p">)</span>      <span class="k">this</span><span class="p">.</span><span class="nx">model</span>      <span class="o">=</span> <span class="nx">options</span><span class="p">.</span><span class="nx">model</span><span class="p">;</span>
      <span class="k">if</span> <span class="p">(</span><span class="nx">options</span><span class="p">.</span><span class="nx">collection</span><span class="p">)</span> <span class="k">this</span><span class="p">.</span><span class="nx">collection</span> <span class="o">=</span> <span class="nx">options</span><span class="p">.</span><span class="nx">collection</span><span class="p">;</span>
      <span class="k">if</span> <span class="p">(</span><span class="nx">options</span><span class="p">.</span><span class="nx">el</span><span class="p">)</span>         <span class="k">this</span><span class="p">.</span><span class="nx">el</span>         <span class="o">=</span> <span class="nx">options</span><span class="p">.</span><span class="nx">el</span><span class="p">;</span>
      <span class="k">if</span> <span class="p">(</span><span class="nx">options</span><span class="p">.</span><span class="nx">id</span><span class="p">)</span>         <span class="k">this</span><span class="p">.</span><span class="nx">id</span>         <span class="o">=</span> <span class="nx">options</span><span class="p">.</span><span class="nx">id</span><span class="p">;</span>
      <span class="k">if</span> <span class="p">(</span><span class="nx">options</span><span class="p">.</span><span class="nx">className</span><span class="p">)</span>  <span class="k">this</span><span class="p">.</span><span class="nx">className</span>  <span class="o">=</span> <span class="nx">options</span><span class="p">.</span><span class="nx">className</span><span class="p">;</span>
      <span class="k">if</span> <span class="p">(</span><span class="nx">options</span><span class="p">.</span><span class="nx">tagName</span><span class="p">)</span>    <span class="k">this</span><span class="p">.</span><span class="nx">tagName</span>    <span class="o">=</span> <span class="nx">options</span><span class="p">.</span><span class="nx">tagName</span><span class="p">;</span>
      <span class="k">this</span><span class="p">.</span><span class="nx">options</span> <span class="o">=</span> <span class="nx">options</span><span class="p">;</span>
    <span class="p">},</span></pre></div>             </td>           </tr>                               <tr id="section-105">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-105">&#182;</a>               </div>               <p>Ensure that the View has a DOM element to render into.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">_ensureElement</span> <span class="o">:</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
      <span class="k">if</span> <span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">el</span><span class="p">)</span> <span class="k">return</span><span class="p">;</span>
      <span class="kd">var</span> <span class="nx">attrs</span> <span class="o">=</span> <span class="p">{};</span>
      <span class="k">if</span> <span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">id</span><span class="p">)</span> <span class="nx">attrs</span><span class="p">.</span><span class="nx">id</span> <span class="o">=</span> <span class="k">this</span><span class="p">.</span><span class="nx">id</span><span class="p">;</span>
      <span class="k">if</span> <span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">className</span><span class="p">)</span> <span class="nx">attrs</span><span class="p">[</span><span class="s2">&quot;class&quot;</span><span class="p">]</span> <span class="o">=</span> <span class="k">this</span><span class="p">.</span><span class="nx">className</span><span class="p">;</span>
      <span class="k">this</span><span class="p">.</span><span class="nx">el</span> <span class="o">=</span> <span class="k">this</span><span class="p">.</span><span class="nx">make</span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">tagName</span><span class="p">,</span> <span class="nx">attrs</span><span class="p">);</span>
    <span class="p">}</span>

  <span class="p">});</span></pre></div>             </td>           </tr>                               <tr id="section-106">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-106">&#182;</a>               </div>               <p>The self-propagating extend function that Backbone classes use.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="kd">var</span> <span class="nx">extend</span> <span class="o">=</span> <span class="kd">function</span> <span class="p">(</span><span class="nx">protoProps</span><span class="p">,</span> <span class="nx">classProps</span><span class="p">)</span> <span class="p">{</span>
    <span class="kd">var</span> <span class="nx">child</span> <span class="o">=</span> <span class="nx">inherits</span><span class="p">(</span><span class="k">this</span><span class="p">,</span> <span class="nx">protoProps</span><span class="p">,</span> <span class="nx">classProps</span><span class="p">);</span>
    <span class="nx">child</span><span class="p">.</span><span class="nx">extend</span> <span class="o">=</span> <span class="nx">extend</span><span class="p">;</span>
    <span class="k">return</span> <span class="nx">child</span><span class="p">;</span>
  <span class="p">};</span></pre></div>             </td>           </tr>                               <tr id="section-107">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-107">&#182;</a>               </div>               <p>Set up inheritance for the model, collection, and view.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nx">Backbone</span><span class="p">.</span><span class="nx">Model</span><span class="p">.</span><span class="nx">extend</span> <span class="o">=</span> <span class="nx">Backbone</span><span class="p">.</span><span class="nx">Collection</span><span class="p">.</span><span class="nx">extend</span> <span class="o">=</span>
    <span class="nx">Backbone</span><span class="p">.</span><span class="nx">Controller</span><span class="p">.</span><span class="nx">extend</span> <span class="o">=</span> <span class="nx">Backbone</span><span class="p">.</span><span class="nx">View</span><span class="p">.</span><span class="nx">extend</span> <span class="o">=</span> <span class="nx">extend</span><span class="p">;</span></pre></div>             </td>           </tr>                               <tr id="section-108">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-108">&#182;</a>               </div>               <p>Map from CRUD to HTTP for our default <code>Backbone.sync</code> implementation.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="kd">var</span> <span class="nx">methodMap</span> <span class="o">=</span> <span class="p">{</span>
    <span class="s1">&#39;create&#39;</span><span class="o">:</span> <span class="s1">&#39;POST&#39;</span><span class="p">,</span>
    <span class="s1">&#39;update&#39;</span><span class="o">:</span> <span class="s1">&#39;PUT&#39;</span><span class="p">,</span>
    <span class="s1">&#39;delete&#39;</span><span class="o">:</span> <span class="s1">&#39;DELETE&#39;</span><span class="p">,</span>
    <span class="s1">&#39;read&#39;</span>  <span class="o">:</span> <span class="s1">&#39;GET&#39;</span>
  <span class="p">};</span></pre></div>             </td>           </tr>                               <tr id="section-109">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-109">&#182;</a>               </div>               <h2>Backbone.sync</h2>             </td>             <td class="code">               <div class="highlight"><pre></pre></div>             </td>           </tr>                               <tr id="section-110">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-110">&#182;</a>               </div>               <p>Override this function to change the manner in which Backbone persists
models to the server. You will be passed the type of request, and the
model in question. By default, uses makes a RESTful Ajax request
to the model's <code>url()</code>. Some possible customizations could be:</p>

<ul>
<li>Use <code>setTimeout</code> to batch rapid-fire updates into a single request.</li>
<li>Send up the models as XML instead of JSON.</li>
<li>Persist models via WebSockets instead of Ajax.</li>
</ul>

<p>Turn on <code>Backbone.emulateHTTP</code> in order to send <code>PUT</code> and <code>DELETE</code> requests
as <code>POST</code>, with a <code>_method</code> parameter containing the true HTTP method,
as well as all requests with the body as <code>application/x-www-form-urlencoded</code> instead of
<code>application/json</code> with the model in a param named <code>model</code>.
Useful when interfacing with server-side languages like <strong>PHP</strong> that make
it difficult to read the body of <code>PUT</code> requests.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nx">Backbone</span><span class="p">.</span><span class="nx">sync</span> <span class="o">=</span> <span class="kd">function</span><span class="p">(</span><span class="nx">method</span><span class="p">,</span> <span class="nx">model</span><span class="p">,</span> <span class="nx">success</span><span class="p">,</span> <span class="nx">error</span><span class="p">)</span> <span class="p">{</span>
    <span class="kd">var</span> <span class="nx">type</span> <span class="o">=</span> <span class="nx">methodMap</span><span class="p">[</span><span class="nx">method</span><span class="p">];</span>
    <span class="kd">var</span> <span class="nx">modelJSON</span> <span class="o">=</span> <span class="p">(</span><span class="nx">method</span> <span class="o">===</span> <span class="s1">&#39;create&#39;</span> <span class="o">||</span> <span class="nx">method</span> <span class="o">===</span> <span class="s1">&#39;update&#39;</span><span class="p">)</span> <span class="o">?</span>
                    <span class="nx">JSON</span><span class="p">.</span><span class="nx">stringify</span><span class="p">(</span><span class="nx">model</span><span class="p">.</span><span class="nx">toJSON</span><span class="p">())</span> <span class="o">:</span> <span class="kc">null</span><span class="p">;</span></pre></div>             </td>           </tr>                               <tr id="section-111">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-111">&#182;</a>               </div>               <p>Default JSON-request options.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="kd">var</span> <span class="nx">params</span> <span class="o">=</span> <span class="p">{</span>
      <span class="nx">url</span><span class="o">:</span>          <span class="nx">getUrl</span><span class="p">(</span><span class="nx">model</span><span class="p">),</span>
      <span class="nx">type</span><span class="o">:</span>         <span class="nx">type</span><span class="p">,</span>
      <span class="nx">contentType</span><span class="o">:</span>  <span class="s1">&#39;application/json&#39;</span><span class="p">,</span>
      <span class="nx">data</span><span class="o">:</span>         <span class="nx">modelJSON</span><span class="p">,</span>
      <span class="nx">dataType</span><span class="o">:</span>     <span class="s1">&#39;json&#39;</span><span class="p">,</span>
      <span class="nx">processData</span><span class="o">:</span>  <span class="kc">false</span><span class="p">,</span>
      <span class="nx">success</span><span class="o">:</span>      <span class="nx">success</span><span class="p">,</span>
      <span class="nx">error</span><span class="o">:</span>        <span class="nx">error</span>
    <span class="p">};</span></pre></div>             </td>           </tr>                               <tr id="section-112">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-112">&#182;</a>               </div>               <p>For older servers, emulate JSON by encoding the request into an HTML-form.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="k">if</span> <span class="p">(</span><span class="nx">Backbone</span><span class="p">.</span><span class="nx">emulateJSON</span><span class="p">)</span> <span class="p">{</span>
      <span class="nx">params</span><span class="p">.</span><span class="nx">contentType</span> <span class="o">=</span> <span class="s1">&#39;application/x-www-form-urlencoded&#39;</span><span class="p">;</span>
      <span class="nx">params</span><span class="p">.</span><span class="nx">processData</span> <span class="o">=</span> <span class="kc">true</span><span class="p">;</span>
      <span class="nx">params</span><span class="p">.</span><span class="nx">data</span>        <span class="o">=</span> <span class="nx">modelJSON</span> <span class="o">?</span> <span class="p">{</span><span class="nx">model</span> <span class="o">:</span> <span class="nx">modelJSON</span><span class="p">}</span> <span class="o">:</span> <span class="p">{};</span>
    <span class="p">}</span></pre></div>             </td>           </tr>                               <tr id="section-113">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-113">&#182;</a>               </div>               <p>For older servers, emulate HTTP by mimicking the HTTP method with <code>_method</code>
And an <code>X-HTTP-Method-Override</code> header.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="k">if</span> <span class="p">(</span><span class="nx">Backbone</span><span class="p">.</span><span class="nx">emulateHTTP</span><span class="p">)</span> <span class="p">{</span>
      <span class="k">if</span> <span class="p">(</span><span class="nx">type</span> <span class="o">===</span> <span class="s1">&#39;PUT&#39;</span> <span class="o">||</span> <span class="nx">type</span> <span class="o">===</span> <span class="s1">&#39;DELETE&#39;</span><span class="p">)</span> <span class="p">{</span>
        <span class="k">if</span> <span class="p">(</span><span class="nx">Backbone</span><span class="p">.</span><span class="nx">emulateJSON</span><span class="p">)</span> <span class="nx">params</span><span class="p">.</span><span class="nx">data</span><span class="p">.</span><span class="nx">_method</span> <span class="o">=</span> <span class="nx">type</span><span class="p">;</span>
        <span class="nx">params</span><span class="p">.</span><span class="nx">type</span> <span class="o">=</span> <span class="s1">&#39;POST&#39;</span><span class="p">;</span>
        <span class="nx">params</span><span class="p">.</span><span class="nx">beforeSend</span> <span class="o">=</span> <span class="kd">function</span><span class="p">(</span><span class="nx">xhr</span><span class="p">)</span> <span class="p">{</span>
          <span class="nx">xhr</span><span class="p">.</span><span class="nx">setRequestHeader</span><span class="p">(</span><span class="s2">&quot;X-HTTP-Method-Override&quot;</span><span class="p">,</span> <span class="nx">type</span><span class="p">);</span>
        <span class="p">};</span>
      <span class="p">}</span>
    <span class="p">}</span></pre></div>             </td>           </tr>                               <tr id="section-114">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-114">&#182;</a>               </div>               <p>Make the request.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">$</span><span class="p">.</span><span class="nx">ajax</span><span class="p">(</span><span class="nx">params</span><span class="p">);</span>
  <span class="p">};</span></pre></div>             </td>           </tr>                               <tr id="section-115">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-115">&#182;</a>               </div>               <h2>Helpers</h2>             </td>             <td class="code">               <div class="highlight"><pre></pre></div>             </td>           </tr>                               <tr id="section-116">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-116">&#182;</a>               </div>               <p>Shared empty constructor function to aid in prototype-chain creation.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="kd">var</span> <span class="nx">ctor</span> <span class="o">=</span> <span class="kd">function</span><span class="p">(){};</span></pre></div>             </td>           </tr>                               <tr id="section-117">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-117">&#182;</a>               </div>               <p>Helper function to correctly set up the prototype chain, for subclasses.
Similar to <code>goog.inherits</code>, but uses a hash of prototype properties and
class properties to be extended.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="kd">var</span> <span class="nx">inherits</span> <span class="o">=</span> <span class="kd">function</span><span class="p">(</span><span class="nx">parent</span><span class="p">,</span> <span class="nx">protoProps</span><span class="p">,</span> <span class="nx">staticProps</span><span class="p">)</span> <span class="p">{</span>
    <span class="kd">var</span> <span class="nx">child</span><span class="p">;</span></pre></div>             </td>           </tr>                               <tr id="section-118">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-118">&#182;</a>               </div>               <p>The constructor function for the new subclass is either defined by you
(the "constructor" property in your <code>extend</code> definition), or defaulted
by us to simply call <code>super()</code>.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="k">if</span> <span class="p">(</span><span class="nx">protoProps</span> <span class="o">&amp;&amp;</span> <span class="nx">protoProps</span><span class="p">.</span><span class="nx">hasOwnProperty</span><span class="p">(</span><span class="s1">&#39;constructor&#39;</span><span class="p">))</span> <span class="p">{</span>
      <span class="nx">child</span> <span class="o">=</span> <span class="nx">protoProps</span><span class="p">.</span><span class="nx">constructor</span><span class="p">;</span>
    <span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
      <span class="nx">child</span> <span class="o">=</span> <span class="kd">function</span><span class="p">(){</span> <span class="k">return</span> <span class="nx">parent</span><span class="p">.</span><span class="nx">apply</span><span class="p">(</span><span class="k">this</span><span class="p">,</span> <span class="nx">arguments</span><span class="p">);</span> <span class="p">};</span>
    <span class="p">}</span></pre></div>             </td>           </tr>                               <tr id="section-119">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-119">&#182;</a>               </div>               <p>Set the prototype chain to inherit from <code>parent</code>, without calling
<code>parent</code>'s constructor function.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">ctor</span><span class="p">.</span><span class="nx">prototype</span> <span class="o">=</span> <span class="nx">parent</span><span class="p">.</span><span class="nx">prototype</span><span class="p">;</span>
    <span class="nx">child</span><span class="p">.</span><span class="nx">prototype</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">ctor</span><span class="p">();</span></pre></div>             </td>           </tr>                               <tr id="section-120">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-120">&#182;</a>               </div>               <p>Add prototype properties (instance properties) to the subclass,
if supplied.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="k">if</span> <span class="p">(</span><span class="nx">protoProps</span><span class="p">)</span> <span class="nx">_</span><span class="p">.</span><span class="nx">extend</span><span class="p">(</span><span class="nx">child</span><span class="p">.</span><span class="nx">prototype</span><span class="p">,</span> <span class="nx">protoProps</span><span class="p">);</span></pre></div>             </td>           </tr>                               <tr id="section-121">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-121">&#182;</a>               </div>               <p>Add static properties to the constructor function, if supplied.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="k">if</span> <span class="p">(</span><span class="nx">staticProps</span><span class="p">)</span> <span class="nx">_</span><span class="p">.</span><span class="nx">extend</span><span class="p">(</span><span class="nx">child</span><span class="p">,</span> <span class="nx">staticProps</span><span class="p">);</span></pre></div>             </td>           </tr>                               <tr id="section-122">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-122">&#182;</a>               </div>               <p>Correctly set child's <code>prototype.constructor</code>, for <code>instanceof</code>.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">child</span><span class="p">.</span><span class="nx">prototype</span><span class="p">.</span><span class="nx">constructor</span> <span class="o">=</span> <span class="nx">child</span><span class="p">;</span></pre></div>             </td>           </tr>                               <tr id="section-123">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-123">&#182;</a>               </div>               <p>Set a convenience property in case the parent's prototype is needed later.</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="nx">child</span><span class="p">.</span><span class="nx">__super__</span> <span class="o">=</span> <span class="nx">parent</span><span class="p">.</span><span class="nx">prototype</span><span class="p">;</span>

    <span class="k">return</span> <span class="nx">child</span><span class="p">;</span>
  <span class="p">};</span></pre></div>             </td>           </tr>                               <tr id="section-124">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-124">&#182;</a>               </div>               <p>Helper function to get a URL from a Model or Collection as a property
or as a function.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="kd">var</span> <span class="nx">getUrl</span> <span class="o">=</span> <span class="kd">function</span><span class="p">(</span><span class="nx">object</span><span class="p">)</span> <span class="p">{</span>
    <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="p">(</span><span class="nx">object</span> <span class="o">&amp;&amp;</span> <span class="nx">object</span><span class="p">.</span><span class="nx">url</span><span class="p">))</span> <span class="k">throw</span> <span class="k">new</span> <span class="nb">Error</span><span class="p">(</span><span class="s2">&quot;A &#39;url&#39; property or function must be specified&quot;</span><span class="p">);</span>
    <span class="k">return</span> <span class="nx">_</span><span class="p">.</span><span class="nx">isFunction</span><span class="p">(</span><span class="nx">object</span><span class="p">.</span><span class="nx">url</span><span class="p">)</span> <span class="o">?</span> <span class="nx">object</span><span class="p">.</span><span class="nx">url</span><span class="p">()</span> <span class="o">:</span> <span class="nx">object</span><span class="p">.</span><span class="nx">url</span><span class="p">;</span>
  <span class="p">};</span></pre></div>             </td>           </tr>                               <tr id="section-125">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-125">&#182;</a>               </div>               <p>Wrap an optional error callback with a fallback error event.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="kd">var</span> <span class="nx">wrapError</span> <span class="o">=</span> <span class="kd">function</span><span class="p">(</span><span class="nx">onError</span><span class="p">,</span> <span class="nx">model</span><span class="p">,</span> <span class="nx">options</span><span class="p">)</span> <span class="p">{</span>
    <span class="k">return</span> <span class="kd">function</span><span class="p">(</span><span class="nx">resp</span><span class="p">)</span> <span class="p">{</span>
      <span class="k">if</span> <span class="p">(</span><span class="nx">onError</span><span class="p">)</span> <span class="p">{</span>
        <span class="nx">onError</span><span class="p">(</span><span class="nx">model</span><span class="p">,</span> <span class="nx">resp</span><span class="p">);</span>
      <span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
        <span class="nx">model</span><span class="p">.</span><span class="nx">trigger</span><span class="p">(</span><span class="s1">&#39;error&#39;</span><span class="p">,</span> <span class="nx">model</span><span class="p">,</span> <span class="nx">resp</span><span class="p">,</span> <span class="nx">options</span><span class="p">);</span>
      <span class="p">}</span>
    <span class="p">};</span>
  <span class="p">};</span></pre></div>             </td>           </tr>                               <tr id="section-126">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-126">&#182;</a>               </div>               <p>Helper function to escape a string for HTML rendering.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="kd">var</span> <span class="nx">escapeHTML</span> <span class="o">=</span> <span class="kd">function</span><span class="p">(</span><span class="nx">string</span><span class="p">)</span> <span class="p">{</span>
    <span class="k">return</span> <span class="nx">string</span><span class="p">.</span><span class="nx">replace</span><span class="p">(</span><span class="sr">/&amp;(?!\w+;)/g</span><span class="p">,</span> <span class="s1">&#39;&amp;amp;&#39;</span><span class="p">).</span><span class="nx">replace</span><span class="p">(</span><span class="sr">/&lt;/g</span><span class="p">,</span> <span class="s1">&#39;&amp;lt;&#39;</span><span class="p">).</span><span class="nx">replace</span><span class="p">(</span><span class="sr">/&gt;/g</span><span class="p">,</span> <span class="s1">&#39;&amp;gt;&#39;</span><span class="p">).</span><span class="nx">replace</span><span class="p">(</span><span class="sr">/&quot;/g</span><span class="p">,</span> <span class="s1">&#39;&amp;quot;&#39;</span><span class="p">);</span>
  <span class="p">};</span>

<span class="p">})();</span>

</pre></div>             </td>           </tr>                </tbody>     </table>   </div> </body> </html> 